F(x) = x (2x – 7), if f(x)= 15 then find the value of x.
Answers
Answered by
1
Answer:
15(2×15-7)
=15(23)
=345
Answered by
1
Step-by-step explanation:
15 = 2x^2 -7
22= 2x^2
22/2=x^2
11= x^2
√11=x
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