goldenstorm765 goldenstorm765

25-10-2016
Mathematics

contestada

1.if f(x)=-4x^2+15, then f(-3)=

2.if(x)=3x-2, find f(8)-f(-5)

Respuesta :

CiaraSaure CiaraSaure

25-10-2016

1. -4(3)^2+15
-4(9)+15
-36+15
-21<-

2. 3(8)-2
24-2
22

3(-5)-2
-15-2
-17

22-(-17)
39 <-

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