Answered

2x (x-3) = 15

how to get the value of x?

Sagot :

Mlcparra16id
2x(x-3)=15
2x²-6x=15
2x²-6x-15=0

We use the Quadratic Formula:
x = 6 ± √(6²+120) = 6 ± √156 = 6 ± 2√39 = 3 ± √39
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