Answer:
3
Step-by-step explanation:
I'm just guessing because you don't give any numbers or anything at all
If you think about it, 4x7 is half of 8x7 (If you multiply 4, 7, and 2, you get 8x7). So really you can just multiply 4x7 by 2 and you will get 8x7!
(3.7 x 104)2 = 769.6
In Scientific notation:
7.696 x 10^2
<span>3x^2+14x+8 = </span>(3x+2)(x+4)
4(2x+1) = 3(x+8)
8x + 4 = 3x + 24
5x = 20
∴x = 4