Answer:
x = -5
y = 4
Step-by-step explanation:
3x + 4y = 1 /*(-4)
4x + 5y = 0 /*3
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-12x - 16y = -4
12x + 15y = 0 +
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-y = -4
y = 4
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12x = -15y
12x = -60
x = -5
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The answer is x^4-6x^3+12x^2-28/x^2
Answer:
10x² - 12
Step-by-step explanation:
4x² - 7 + 6x² - 5 (combine like terms)
10x² - 12