Please help solve and explain in detail (5x^2 – 3x + 2) + (-3x^2 – 5x – 8) – (x^2 + 3x – 10)?

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2007-12-10 14:34:03 · 2 answers · asked by Abena 2 in Science & Mathematics ➔ Mathematics

(5x^2 - 3x + 2) + (-3x^2 - 5x - 8) - (x^2 + 3x - 10)
= 5x^2 - 3x + 2 -3x^2 - 5x - 8 - x^2 - 3x + 10
= x^2 - 11x + 4

2007-12-10 14:38:16 · answer #1 · answered by Blake 3 · 0⤊ 0⤋

(5x^2-3x+2)(-3x^2-5x-8)-(x^2-3x+10)=

get together like terms

5x^2-3x^2-x^2=x^2
-3x-5x-3x=-11x
2-8+10=4

x^2-11x+4

2007-12-10 14:44:16 · answer #2 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋