32(15)=x(x+14)
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So we have
480 = x2 + 14x subtract 480 from both sides
0 = x2 + 14x - 480 This factors as
(x+30) (x-16) = 0
And setting each factor = 0 we get that
x = -30 and x = 16
32(15)=x(x+14)
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So we have
480 = x2 + 14x subtract 480 from both sides
0 = x2 + 14x - 480 This factors as
(x+30) (x-16) = 0
And setting each factor = 0 we get that
x = -30 and x = 16