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Evaluate the given expression for x=7
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3 votes
Evaluate the given expression for x=7

Evaluate the given expression for x=7-example-1
User Bluenowhere
by
8.1k points

1 Answer

7 votes

Answer:

63

Explanation:

Given the expression:


\displaystyle{x^2+3x-7}

Substitute x = -7:


\displaystyle{7^2+3(7)-7}

Evaluate:


\displaystyle{(7)(7)+3(7)-7}\\\\\displaystyle{=49+21-7}\\\\\displaystyle{=63}

User Zamith
by
7.3k points
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