CBSE Questions for Class 7 Maths Algebraic Expressions Quiz 3 - MCQExams.com

5a{3a(4a)4}5a{3a(4a)4} is equal to
  • 3a+83a+8
  • a8a8
  • a+8a+8
  • 3a83a8
a2(a2)a2(a2) is equal to
  • 2a22a2
  • a2a2
  • 0
  • 2a22a2
Subtract the sum of 9b2+3c29b2+3c2 and 2b2+bc+2c22b2+bc+2c2 from the sum of 2b22bcc22b22bcc2 and c2+2bcb2c2+2bcb2.
  • 13b25bc+5c213b25bc+5c2
  • 10b2bc5c210b2bc5c2
  • 10b2+bc5c210b2+bc5c2
  • 10b25bc5c210b25bc5c2
Simplify: (a32a2+4a5)(a38a+2a2+5)(a32a2+4a5)(a38a+2a2+5)
  • 2a3+7a2+6a102a3+7a2+6a10
  • 2a3+7a2+12a102a3+7a2+12a10
  • 2a34a2+12a102a34a2+12a10
  • 2a34a2+6a102a34a2+6a10
Add the following:
abbc,bcca,caababbc,bcca,caab
  • 0
  • 1
  • 2
  • -1
What should be subtracted from x24xyy2x24xyy2 to get 11?
  • x24xy+y2x24xy+y2
  • x2+4xy+y2+1x2+4xy+y2+1
  • x24xyy21x24xyy21
  • x2+4xy+y21x2+4xy+y21
Simplify: (a43a2+6a8)(a410a+4a2+8)(a43a2+6a8)(a410a+4a2+8)
  • 7a216a+167a216a+16
  • 7a216a+167a216a+16
  • 7a2+16a167a2+16a16
  • 7a2+16a167a2+16a16
Add the following:
 3a4b+4c,2a+3b8c,a6b+c3a4b+4c,2a+3b8c,a6b+c
  • 6a7b3c6a7b3c
  • 6a7b+3c6a7b+3c
  • 6a+7b3c6a+7b3c
  • 5a7b3c5a7b3c
Subtract
3a2b3a2b from 5a2b5a2b
  • 2a2b2a2b
  • 2a2b2a2b
  • 8a2b8a2b
  • 00
By how much is x44 + 4x22y22 + y44 more than x44 - 8x22y22 + y44
  • -12x22y22
  • 12x22y22
  • 2x44 + 2y44
  • None of these
What must be added to (x3+3x8)(x3+3x8) to get (3x3+x2+6)(3x3+x2+6)?
  • 2x3+x23x+142x3+x23x+14
  • 2x2+x2+142x2+x2+14
  • 2x3+x26x142x3+x26x14
  • None of these
If we add two monomials, what will be the result?
  • Monomial
  • Binomial
  • Polynomial
  • Either AA or BB
Add the following:
5x8y+2z,3z4y2x,6yzx5x8y+2z,3z4y2x,6yzx
  • 2x6y4z2x6y4z
  • 2x6y+4z2x6y+4z
  • 2x+6y+4z2x+6y+4z
  • 2x6y+4z2x6y+4z
How many terms are there in the algebraic expression 7x3+2xy+z7y7x3+2xy+z7y?
  • 33
  • 44
  • 55
  • 66
Simplify the expression (2b3c2+b2c4bc)(b3c2b2c4bc)(2b3c2+b2c4bc)(b3c2b2c4bc).
  • 0
  • b3c2b3c2
  • b3c2+2b2cb3c2+2b2c
  • b3c2+2b2c8bcb3c2+2b2c8bc
If two unlike terms are added , the result will be a
  • monomial
  • binomial
  • trinomial
  • polynomial
Simplify (2x2+4x+8)(2x24x+7)(2x2+4x+8)(2x24x+7)
  • 4x2+8x+154x2+8x+15
  • 2x2+x+12x2+x+1
  • 8x+18x+1
  • 8x+158x+15
Subtract (jk2+2j2k+5j2)(jk2+2j2k+5j2) from (5jk2+5j22j2k)(5jk2+5j22j2k)
  • (4kj24jk2)(4kj24jk2)
  • 4jk24j2k4jk24j2k
  • 5j2k410j4k5j2k410j4k
  • 8j2k3+7j2k5j28j2k3+7j2k5j2
5x3+5x2+4x+3+4x2+5x=5x3+5x2+4x+3+4x2+5x=
  • 9x3+4x2+4x+59x3+4x2+4x+5
  • 5x3+5x2+9x+45x3+5x2+9x+4
  • 5x3+9x2+9x+35x3+9x2+9x+3
  • None of the above
If we add 7x7x and 5y2+z5y2+z , what will be the result?
  • binomial
  • trinomial
  • polynimial
  • can"t be determind
If we add 3+7x3+7x and 11x11x , what will be the result?
  • monomial
  • binominal
  • trinimial
  • can"t be determined
Find an equivalent simplified expression for 2(4x+7)3(2x4)2(4x+7)3(2x4).
  • x+2x+2
  • 2x+22x+2
  • 2x+262x+26
  • 3x+103x+10
  • 3x+113x+11
The expression (x2y3y2+5xy2)(x2y+3xy23y2)(x2y3y2+5xy2)(x2y+3xy23y2) is equivalent to which of the following expression?
  • 4x2y24x2y2
  • 8xy26y28xy26y2
  • 2x2y+2xy22x2y+2xy2
  • 2x2y+8xy26y22x2y+8xy26y2
Simplify the expression: t259t+5482t2+60tt259t+5482t2+60t 
  • 26t226t2
  • 26t626t6
  • 81t4+t2+5481t4+t2+54
  • 81t2+t+5481t2+t+54
(a+2b+3c)(4a+6b5c)(a+2b+3c)(4a+6b5c) is equivalent to:
  • 4a8b2c4a8b2c
  • 4a4b+8c4a4b+8c
  • 3a+8b2c3a+8b2c
  • 3a4b2c3a4b2c
  • 3a4b+8c3a4b+8c
Simplify: (3pq2+4pq)(7pq9pq2)(3pq2+4pq)(7pq9pq2)
  • 6pq2+3pq6pq2+3pq
  • 6pq23pq6pq23pq
  • 12pq2+3pq12pq2+3pq
  • 12pq23pq12pq23pq
Simplify :(8pst+3prq14)(7prq20+2pst)=(8pst+3prq14)(7prq20+2pst)=
  • 610pst+10prq610pst+10prq
  • 610pst4prq610pst4prq
  • 6pst10prq+66pst10prq+6
  • 10pst4prq3410pst4prq34
What must be subtracted from 3x2+4y253x2+4y25 to get 2x23y2+52x23y2+5?
  • x2+3y2+5x2+3y2+5
  • x24y2+5x24y2+5
  • x2+7y210x2+7y210
  • x27y210x27y210
The sum of 33 expression is 8+13a+7a^8+13a+7a^ Two of them are 2a2+3a+22a2+3a+2 and 3a24a+13a24a+1 . Find the third expression.
  • a2+a+5a2+a+5
  • 2a2+a+52a2+a+5
  • 2a3+14a+52a3+14a+5
  • 2a2+14a+52a2+14a+5
Simplify :
(a32a2+4a5)(a38a+2a2+5)(a32a2+4a5)(a38a+2a2+5)
  • 2a3+7a2+6a102a3+7a2+6a10
  • 2a3+7a2+12a102a3+7a2+12a10
  • 2a34a2+12a102a34a2+12a10
  • 2a34a2+6a102a34a2+6a10
0:0:2


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