4a²=144
a²=144/4
a²=36
a=⁺₋√36
a=⁺₋6
Answer: we have two values for a; a=-6; and a=6
we check it out:
if a=-6
4(-6)²=4*36=144
if a=6
4(6)²=4*36=144
Step-by-step explanation:
is there any value for S??
Here is your answer
Add 315 gallons of 70% antifreeze to 90 gallons of 25% antifreeze to make a 60% mixture.
Answer: Rico is right.
(-1)(3x + 5)²
Step-by-step explanation: If it were the difference of two squares, the -30x would not be there.
It makes sense to factor out (-1) fry the trinomial, leaving all positive terms.
Then factor 9x² + 30x + 25 as
(3x + 5)²
