2 years ago

3x2 + 5x - 7(x2 + 4)

Mathematics

2 answers:

goldenfox [79]2 years ago

5 0

Answer:

-4x^2+5x-28

Step-by-step explanation:

Expand -7(x^2 +4) = 3x^2+5x-7x^2-28

Simplify 3x^2+5x-7x^2-28 = -4x^2+5x-28

Lelechka [254]2 years ago

3 0

Answer: -4x² + 5x - 28

Step-by-step explanation:

Given expression

3x² + 5x - 7 (x² + 4)

Expand parentheses and apply the distributive property

=3x² + 5x - 7x² - 28

Combine like terms

=(3x² - 7x²) + 5x - 28

= $\boxed{-4x^2+5x-28}$

Hope this helps!! :)

Please let me know if you have any questions

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