What must be subtracted from 2 x 3-4 x 2-6 x -2 to get 3 x 3-2 x 2-5 x -3 -A- -x3-4 x2-9 x-3B- -x3-4 x2-6 x-3C- -x3-4 x2-9 x-9D- -x3-4 x2-9 x-3

The correct option is D Let the required expression be y. Then, (2x^3 4x^2+6x 2) y = 3x^3+2x^2 5x+3 ⇒ y= (2x^3 4x^2+6x 2) (3x^3+2x^2 5x+3) 2x^3 4x^2+6x 2 3x^3 ...

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Byju's Answer

Standard VIII

Mathematics

Addition and Subtraction of Like and Unlike Terms

What must be ...

Question

What must be subtracted from $2 x^{3} - 4 x^{2} + 6 x - 2$ to get $3 x^{3} + 2 x^{2} - 5 x + 3$ ?

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Solution

The correct option is D

Let the required expression be $y$ .
Then,
$(2 x^{3} - 4 x^{2} + 6 x - 2) - y = 3 x^{3} + 2 x^{2} - 5 x + 3$
$\Rightarrow y = (2 x^{3} - 4 x^{2} + 6 x - 2) - (3 x^{3} + 2 x^{2} - 5 x + 3)$
$2 x^{3} - 4 x^{2} + 6 x - 2$
$3 x^{3} + 2 x^{2} - 5 x + 3$
$- - + -$
__________________
$- x^{3} - 6 x^{2} + 11 x - 5$

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Similar questions

What must be subtracted from $x^{3} - 3 x^{2} + 5 x - 1$ to get $2 x^{3} + x^{2} - 4 x + 2$ ?

$- x^{3} - 4 x^{2} + 9 x - 3$ must be subtracted from $x^{3} - 3 x^{2} + 5 x - 1$ to get $2 x^{3} + x^{2} - 4 x + 2$ . State true or false.

Multiply the terms $- 3 x^{2} y^{2}, - 2 x y, 2 x^{2} y$ and verify the product for $x = 1$ and $y = 2$

Q. Evaluate

\int \frac{x^{3} + 4 x^{2} + 9 x}{x^{2} + 4 x + 9} d x

(2 - x^{3} + 5 x) - (2 x^{3} - 4 x^{2} + 5 x + 5)

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What must be subtracted from 2x3−4x2+6x−2 to get 3x3+2x2−5x+3 ?

The correct option is D Let the required expression be y. Then, (2x3−4x2+6x−2)−y=3x3+2x2−5x+3 ⇒y=(2x3−4x2+6x−2)−(3x3+2x2−5x+3) 2x3−4x2+6x−2 3x3+2x2−5x+3 − − + − __________________ −x3 −6x2+11x−5

What must be subtracted from $2 x^{3} - 4 x^{2} + 6 x - 2$ to get $3 x^{3} + 2 x^{2} - 5 x + 3$ ?