Given the expression: 3x10 − 48x2 part a: rewrite the expression by factoring out the greatest common factor. (4 points) part b: factor the entire expression completely. show the steps of your work. (6 points)

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°.

answer is  

a.

7 in. x 11 in.

hope you get this right.

answer is

b.

11

hope you get this one right.