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OpenStudy (anonymous):
quadratic formula can someone show me how to do this problem please. 4X to the power of 2-10X=8X thank you.
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hero (hero):
4x^2 - 10x = 8x 4x^2 - 10x - 8x = 0 4x^2 - 18x = 0 4x(x - 4.5) = 0 4x = 0 x - 4.5 = 0 x = 4.5
hero (hero):
x = 0, 4.5
OpenStudy (anonymous):
4X^2-10X=8X thank you!!
OpenStudy (anonymous):
how about this problem 9X^2-10=6
hero (hero):
9x^2 - 10 = 6 9x^2 = 6 + 10 9x^2 = 16 x^2 = 16/9 x = sqrt(16/9) x = -4/3 x = +4/3
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OpenStudy (anonymous):
thx!
hero (hero):
yw
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