Question

x cube + 8 x square - 3 x + 5 + 4 x cube minus 7 x square + 8 x minus 9

Answer 1

x^3+8x^2-3x+5+4x^3-7x^2+8x-9

=x^3+4x^3+8x^2-7x^2-3x+8x+5-9

=5x^3+x^2-5x-4

Answer 2

The simplified form of given expression is $5x^3+x^2-5x-4$

Step-by-step explanation:

Consider the given expression is

$x^3+8x^2-3x+5+4x^3-7x^2+8x-9$

We need to find the simplified form of given expression.

On combining the like terms we get

$(x^3+4x^3)+(8x^2-7x^2)+(-3x+8x)+(5-9)$

On simplification we get

$5x^3+x^2+(-5x)+(-4)$

$5x^3+x^2-5x-4$

Therefore, the simplified form of given expression is $5x^3+x^2-5x-4$

#Learn more

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