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nikitadnepr [17]
3 years ago
10

Solve the following systems of linear equations using any algebraic method. If possible, check your solution.

Mathematics
1 answer:
julia-pushkina [17]3 years ago
5 0
-8x+18y=-12
24x-18y=18
16x=6
X=3/8
Y=3-12)/6
y=-3/2
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Answer:

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Step-by-step explanation:

Factor the following:

20 x^2 + 15 x - 35

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Factor the quadratic 4 x^2 + 3 x - 7. The coefficient of x^2 is 4 and the constant term is -7. The product of 4 and -7 is -28. The factors of -28 which sum to 3 are -4 and 7. So 4 x^2 + 3 x - 7 = 4 x^2 + 7 x - 4 x - 7 = 7 (x - 1) + 4 x (x - 1):

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Factor x - 1 from 7 (x - 1) + 4 x (x - 1):

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3 years ago
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tatyana61 [14]

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3 years ago
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