# Question #7cc4e

##### 1 Answer

Nov 3, 2016

#### Explanation:

**Question**

Find

for

**Solution**

For

#{: (f(x+h)," = ",-2(x+h)^2,+2(x+h),-4), (, ,,,), (," = ",-2x^2-4xh-2h^2,+2x+2h,-4), (underline(f(x))," = ",underline(-2x^2color(white)(-4xh-2h^2)),underline(+2xcolor(white)(+2h)),underline(-4)), (f(x+h)-f(x)," = ",color(white)(-2x^2+)-4xh+2h^2,color(white)(+2x)+2h,) :}#