Answer:
I believe it is 3
Step-by-step explanation:
The equation would be h=1m+42 and the answer is 78 I think
(-2m + 5n)²
(-2m + 5n) (-2m + 5n)
-2m(-2m + 5n) + 5n(-2m + 5n)
4m² - 10mn - 10mn + 25n²
4m² - 20mn + 25n²
4m²⇒ -2m * -2m
-20mn ⇒ 2(-2m)(5n)
25n² ⇒ 5n * 5n
<span>C. 4m² − 20mn + 25n²; a perfect square trinomial</span>
Answer:
11
4m-28 = 16
4m = 44
m=11
Step-by-step explanation:
