find the value of 'a' if f(a) =9 where f(x)=x²-a+x
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Answered by
0
Step-by-step explanation:
f(X)=x^2-a+X
=let f = 9
putting the value of
Answered by
10
Given
f(x) = x^2 - a + x —-> 1
f(a) = 9
Substitute x = a in equation 1,
f(a) = a^2 - a + a = 9
=> a^2 = 9
=> a = +/- 3 ——> Answer
f(x) = x^2 - a + x —-> 1
f(a) = 9
Substitute x = a in equation 1,
f(a) = a^2 - a + a = 9
=> a^2 = 9
=> a = +/- 3 ——> Answer
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