Question

Solve the following

if the value of the polynomial m2+2m+a is 12 for m=2 then find the value of a

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Answer 1

Answer:

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Answer 2

m² + 2m + a = 12

m = 2

a = ?

Substitute the values:

m² + 2m + a = 12

= (2)² + 2(2) + a = 12

= 4 + 4 + a = 12

= 8 + a = 12

= a = 12 - 8

= a = 4

To verify:

m² + 2m + a = 12

= (2)² + 2(2) + 4 = 12

= 4 + 4 + 4 = 12

= 12 = 12

verified