Answer:
The answer to your question is
x = -2 and y = 10 or x = 10 and y = -2
Step-by-step explanation:
x + y = 8 (1) from (1) x = 8 - y
xy = - 20 (2)
Solve them by substitution
(8 - y) y = - 20
8y - y² = -20
y² - 8y - 20 = 0
( y - 10) (y + 2) = 0
y - 10 = 0 and y + 2 = 0
<u> y1 = 10 </u> <u>y2 = -2</u>
x1 = 8 - 10 x2 = 8 - -2
<u>x1 = -2</u> <u> x2 = 10</u>
<em>Hello there!</em>
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Hello there, I graphed it on my coordinate plane app, I hope that's what you needed.
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<em>I’ll help with anything else you need!</em>
<em>I hope I helped</em>
<em>@X8lue83rryX</em>
12 4/5 can be changed as 64/5 so there are 64 1/5ths
Factor out the GCF, which is 4.... 4(4a+3b)