Landon Perry

2022-02-05

How do you simplify $-3(5{x}^{2}+2x+9)+x(2x-3)$ ?

Cenedesiidv

Beginner2022-02-06Added 11 answers

Explanation:

When simplifying, all you do is expand and add like terms.

$-3(5{x}^{2}+2x+9)+x(2x-3)$

Now we add like terms.

$=-15{x}^{2}-6x-27+2{x}^{2}-3x$

$=-13{x}^{2}-9x-27$

When simplifying, all you do is expand and add like terms.

Now we add like terms.

Jack Hobbs

Beginner2022-02-07Added 14 answers

Explanation:

$-3(5{x}^{2}+2x+9)+x(2x-3)$

Expand by multiplying the -3 through the terms in parentheses, and by multiplying the x through the terms in parentheses.

$-15{x}^{2}-6x-27+2{x}^{2}-3x$

Gather like terms.

$-15{x}^{2}+2{x}^{2}-6x-3x-27$

Combine like terms.

$-13{x}^{2}-9x-27$

Expand by multiplying the -3 through the terms in parentheses, and by multiplying the x through the terms in parentheses.

Gather like terms.

Combine like terms.

$\frac{20b}{{\left(4{b}^{3}\right)}^{3}}$

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