Answer:
-50x^2+30x-4
Step-by-step explanation:
Answer to 1: 648
Answer to 2: 175
Degree measures<span>Remember -- the sum of the degree measures of angles in any triangle equals 180 degrees. Below is a picture of triangle ABC, where angle A = 60 degrees, angle B = 50 degrees and angle C = 70 degrees.</span>
-5^4
= -625
-5 • -5 • -5 • -5 = -625
1 + 1x
OR
1 + x
They mean the same thing! Hope this helps!