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Given: x+21=7(x+9) Find: x^2+5x
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5 votes
Given: x+21=7(x+9)
Find: x^2+5x

User Kerrion
by
6.1k points

1 Answer

4 votes

Answer:

14

Explanation:

x+21=7(x+9)

x+21=7x+63

-6x=42

x=-7

(-7)^2+5(-7)

=49+(-35)

=49-35

=14

User Mitul Bhalia
by
5.8k points
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