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Solve the equation. x2 + 8x + 16 = 49
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10x+16
x2 + 8x + 16 - 49 =0; x2 + 8x - 33 =0; x2 +11x-3x -33 =0; x(x+11) -3(x+11) =0; (x-3)(x+11) =0; x =3; x=-11
the trick is to know how to break the middle term to factorize the quadratic equation
yea u are right
\(x^2 + 8x + 16) = 49\) \((x + 4)^2 = 7^2\) Square root both sides: \(x + 4 = \pm 7\) \(x = \pm 7 - 4\)
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