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Exercise

$x^2+4x+4+x^2-8x+16-x^2+3x$

Step-by-step Solution

1

Add the values $4$ and $16$

$x^2+4x+20+x^2-8x-x^2+3x$
2

Combining like terms $x^2$ and $x^2$

$2x^2+4x+20-8x-x^2+3x$
3

Combining like terms $2x^2$ and $-x^2$

$x^2+4x+20-8x+3x$
4

Combining like terms $4x$ and $-8x$

$x^2-4x+20+3x$
5

Combining like terms $-4x$ and $3x$

$x^2-x+20$

Final answer to the exercise

$x^2-x+20$

Try other ways to solve this exercise

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$5a-6b+8c+9a-20c-b+6b-c$

$5a+2b-3a+4$

$2x+7x+x-8x$

Main Topic: Equivalent Expressions

Two algebraic expressions are equivalent if they stay equal to each other, for any values their variables can take.

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