Why is it important to find the GCF first when factoring?

The greatest common factor, GCF, is the largest number (expression) that divides exactly into two or more numbers (expressions). The greatest common factor will prove to be an important value. The first step in every factoring problem is to determine and factor out the greatest common factor.

The GCF is important to reduce fractions to their lowest terms

Step-by-step explanation:

i think the answer is b.

step-by-step explanation:

not 100% sure though.

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.