Answer:
b is 125
Step-by-step explanation:
5x^2-45=0
<em>*Add 45 to both sides*</em>
5x^2=45
<em>*Divide both sides by 5*</em>
x^2=9
<em>*Take the square root of both sides*</em>
x=+/-9
Hope this helps!!
Answer:
i don't know this i think its 3.4 or 1.9
If the problem says by or divided by
Look in the images it is solved.