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Brums [2.3K]
3 years ago
13

X(x+8) = 256 square yards solve for x im having a lot of trouble please help

Mathematics
1 answer:
Harrizon [31]3 years ago
7 0
We want to solve
x(x + 8) = 256

Expand the left side.
x² + 8x = 256
Collect all terms on the left side.
x² + 8x - 256 = 0

Solve with the quadratic formula.
x = (1/2)*[-8 +/- √(8² -4*1*(-256)) ]
   = -4 +/- (1/2)*√(1088)
   = -4 +/- 16.4924
x = 12.4924, or x = -20.4924

Answer: x = 12.4924 or x = -20.4924

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