ax²+bx+c=0
4a²x²+4abx+4ac=0
4a²x²+4abx=-4ac
4a²x²+4abx+b²=b²-4ac
(2ax+b)²=b²-4ac
Answer:
He multiplied 25 by 1 and then multiplied 25 by 9 correctly. He added the two partial products correctly
Step-by-step explanation:
Answer:
<7
Step-by-step explanation:
Answer:
6.5
Step-by-step explanation:
9 + 4 = 13 divide by 2 = 6.5 is your answer.