Answer:
18
Step-by-step explanation:
The diagonals of a parallelogram <em>bisect</em> each other, which is to say they split each other in half, and since each half length is equal to the other, we can say that
3x + 3 = 6x - 57
Which, after some algebraic manipulation, gives us the solution
x = 18.
6(3x+5)
6*3x=18x
6*5=30
<u>18x+30</u> is your answer! I hope this helped! :)
Try, please, suggested decision.
I’m pretty sure it this if not sorry
X^2-12x+36=90
x^2-12x-64=0
factor: (x-16)(x+4)=0
by the zero product theorem,
x-16=0 or x+4=0
=>
x=16 or x=-4