When you factor this problem you get:
(3x+5)(x+10)
7^4 or seven to the fourth power because 7 is being multiplied by 7 when you raise it to a power.
Answer: x=68/11 and y=-72/11
Steps:
2(x+4y=-20)
2x+8y=-40
2x - 3y = 32
- 2x + 8y = -40
-11y=72
y=-72/11
x + 4(-72/11) = -20
x - 288/11 = -20
x=68/11
14.4 is going to be your answer
<span>The answer to your question is l = 20 ft; w = 10 ft</span><span />
