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DiKsa [7]
3 years ago
12

What are the solutions to the equation? x2−14x=15 Enter your answers in the boxes. x = and

Mathematics
2 answers:
lbvjy [14]3 years ago
4 0
Hi.
I wrote the solution in the file attached with

Mrrafil [7]3 years ago
3 0
First put it in standard form:
<span>x^2 −14x -15 =0
a =1 b =-14 c=-15
Then use the quadratic formula:
x = [-b +-sq root (b^2 - 4ac)] / 2a
x = [--14 +- sq root (14^2 -4*1*-15] / 2*1
x = [14 +-sq root (196 +60)] / 2
</span><span>x = [14 +- 16] / 2
x1 = 15
x2 = -1


</span>
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