Is a unit fraction always in simplest form?

A unit fraction is a fraction with a numerator equal to 1. With that being said, i think it is ok for us to say they are in simplest form. Besides, you can't divide anything by 1 in order to make it smaller.

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1

12cm

the answer is d