0
Anonymous
2(x + 6)(x - 6)
2x^2 - 72 = 0
2x^2 = 72
x^2 = 36
x = 6, -6
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2(x + 4)(x - 10)
A quadratic polynomial.
yes
2x2+6x-8 = 72 2x2+6x-8-72 = 0 2x2+6x-80 = 0 (2x-10)(x+8) = 0
-70