Question

How do you simplify `\frac { ( x + h ) ^ { 2} + 4( x + h ) 7x ^ { 2} - 4x + 7} { h }`?

Answer 1

`x^2+2hx+h^2+28x^3+28hx^2-4x+7`

Explanation:

`((x+h)^2+4(x+h)7x^2-4x+7)/h`

=`((x+h)(x+h)+(4x+4h)7x^2-4x+7)/h`

=`x^2+hx+hx+h^2+28x^3+28hx^2-4x+7`

=`x^2+2hx+h^2+28x^3+28hx^2-4x+7`

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