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3 years ago

3x^2+5x-7(x^2+4) Which expression is equivalent to the given expression?

Mathematics

1 answer:

Rasek [7]3 years ago

3 0

Answer:

−4x2+5x−28

Step-by-step explanation:

−

(

)

3x^{2}+5x-7(x^{2}+4)

3x2+5x−7(x2+4)

Simplify

Distribute

−

(

)

3x^{2}+5x{\color{#c92786}{-7(x^{2}+4)}}

3x2+5x−7(x2+4)

−

3x^{2}+5x{\color{#c92786}{-7x^{2}-28}}

3x2+5x−7x2−28

Combine like terms

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{\color{#c92786}{3x^{2}}}+5x{\color{#c92786}{-7x^{2}}}-28

3x2+5x−7x2−28

−

{\color{#c92786}{-4x^{2}}}+5x-28

−4x2+5x−28

Solution

−

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