- I have answered this in your last question. (16).
3x^2-16x=x^2-30
-x^2 -x^2
2x^2-16x=-30
+30 +30
2x^2-16x+30=0
2x-6=0 or x-5=0
x=3 or x=5
A. 3,5
If you need an explanation, I can provide one. Hope it helped! If it didn't tell me what went wrong or what confused you.
3(x+4)=9
3x+12=9
3x=-3
x=-1
Hope this helps :D
Answer:

Step-by-step explanation:


Divide both sides by 4:


An imaginary number " i " is the squared root of -1, so whenever you square i it's like squaring a squared root. The squared root would cancel and you would be left with just the number under it, that is, the -1.
i ^ 2 = -1