If you set the two equations equal to each other, then solve for x, and then you substitute your answer into one of the equations you will get your solution. 8x+4=10x-6 4=2x-6 10=2x 5=x 10(5)-6=44 8(5)+4=44 44 IS YOUR ANSWER.
2.(x + 6).(3x - 2) = 0
In a multiplication if one of the terms is equal to 0, everything is equal to 0
So:
If x + 6 = 0, we have a root
x + 6 = 0
x = -6
If 3x - 2 =0, we have a root
3x - 2 = 0
3x = 2
x = 2/3
So our least root is -6 and the greatest is 2/3
It would be log(81) because of the power rule...
<span>
(4w^2-3w+8) + (3w^2+9w+5) - (-8w^2+7w+3)
=</span><span>4w^2- 3w+ 8 + 3w^2+ 9w+ 5 + 8w^2 - 7w - 3
=15</span>w^2 - w + 10
hope it helps