Asked by thanya
solve using formula method x^2+3x-28=0
Answers
Answered by
oobleck
Assuming you mean the quadratic formula,
x = [-3±√(3^2-4(1)(-28))]/2
check: which factors of 28 differ by 3?
x = [-3±√(3^2-4(1)(-28))]/2
check: which factors of 28 differ by 3?
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