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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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
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