If A=3x 2-5x-7and B=-2x²+5x+8 then find A+B
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Answered by
1
Answer:
A = 3x² - 5x - 7
B = -2x² + 5x + 8
A + B = 3x² - 5x - 7 + (-2x² + 5x + 8)
= 3x² - 2x² - 5x + 5x - 7 + 8
= 1x² + 1
= x² + 1
= x² = -1
x = √-1
x = i (i is imaginary number)
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Answered by
0
Answer:
Step-by-step explanation:
(3x^2-5x-7) + (-2x^2+5x+8)
3x^2-2x^2-5x+5x-7+8
X^2+1
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