simplify (2+a+a^2)-(6-3a+4a^2)-(3+5a+a^2)
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= a2 – 2a + {5a2 – 3a + 4a2}
= a2 – 2a + {9a – 3a}
= a2 – 2a + 9a2 – 3a = 10a2 - 5a
hope this helps u dear
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= a2 – 2a + {5a2 – 3a + 4a2}
= a2 – 2a + {9a – 3a}
= a2 – 2a + 9a2 – 3a = 10a2 - 5a
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