Math, asked by saishivani17, 11 months ago

find'a'when is not equal to 2 and 7​

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Answers

Answered by Anonymous
1

(a+3)(a+7) = a^2 - 4

a^2 + 10a + 21 = a^2 -4

10a = -25

a = -5/2

Answered by GPBAG
1

Answer:

-2.5

Step-by-step explanation:

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