What must be subtracted from $${x^2} + 2{x^2} - 3x + 7$$ to get $${x^3} + {x^2} + x - 1?$$

$${x^4} - {x^3} + {x^2} - 4x + 8$$

$${x^4} - {x^3} + {x^2} + 4x - 8$$

$${x^4} - {x^3} - {x^2} + 4x - 8$$

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

What is the product of the two values of x which satisfy

\sqrt{x} + \sqrt{x} = x

$\sqrt{x}+\sqrt{x}=x$ ?

What must be subtracted from

x^{2} + 2 x^{2} - 3 x + 7

${x^2} + 2{x^2} - 3x + 7$ to get

x^{3} + x^{2} + x - 1 ?

${x^3} + {x^2} + x - 1?$

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