SOLUTION: 98=((A+2)^2)/2

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Question 93004: 98=((A+2)^2)/2
Answer by edjones(7311) About Me  (Show Source):
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multiply both sides by 2 %28a%2B2%29%5E2=196
%28a%2B2%29%28a%2B2%29=a%5E2%2B4a%2B4
a%5E2%2B4a%2B4=196
Subtract 196 from both sides a%5E2%2B4a-192=0
Factor the left side (a-12)(a+16)=0
a= 12
a= -16
Ed Jones