Answers
1. Solve inside bracket first
7x^2+4x-26+7x^2+3x-15
= (14x^2+7x-41) Answer
2. 5x(6x^2+3x+7)-1(6x^2+3x+7)
= 30x^3+15x^2+35x-6x^2-3x-7
= (30x^3+9x^2+32x-7) Answer
Two numbers that add up to 2 and multiply to -35
-5 and 7
Rewrite the expression using the above;
<u>(x - 5)(x + 7)</u>
The answer is 375
I got this answer as you take 807-57=750, you would then take 750 and divide it by 2 which gives you 375!
The closest area of one of the slices would be 1.25, divide 20 by 16, and you get 1.25
