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Alex17521 [72]
3 years ago
15

ILL GIVE U BRAINLYIST IF U ANSWER. Find the solution to the system of equations below (you can do this by substitution or elimin

ation).
-4x+y=6
-5x-y=21
Mathematics
1 answer:
cricket20 [7]3 years ago
7 0

Elimination:

-4x+y=6

-5x-y=21   ...and then u add them together so its;

(the y cancelled out so its 0) x =27

plug in the 27 to any x...

-4(27) + y = 6

-108+y=6

add -108 on both sides so its...

y= -102

(27, -102)

Hope this helped :)

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Answer:

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Step-by-step explanation:

Given

(x^2-9)(x+3)

Required

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Take x^2 - 3^2 as difference of two squares

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(x^2-3^2)(x+3)

(x-3)(x+3)(x+3)

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