Question

5. Si P(x)=2x+4a , Q(x)=4x-2 y P[Q(4)]=60 , Calcular el valor de a

Answer 1

a = 8

Explanation:

Explanation:-

Given P(x) = 2 x+4 a

Q(x)=4 x - 2

P( Q(4)) = 60

P(4 (4) - 2) = 60

P( 14 ) = 60

2 (14) + 4 a = 60

4 a + 28 = 60

Subtracting '28' on both sides , we get

4 a +28 - 28 = 60 - 28

4 a = 32

Dividing '4' on both sides , we get

a = 8