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What is 3 (x + 1) ^ 2-5 (x + 1) (x-1) + 2 (x-1) ^ 2 equal to?
3(x+1)²-5(x+1)(x-1)+2(x-1)²
=[(x+1)-(x-1)][3(x+1)-2(x-1)]
=2(x+5)
=2x+10
2 / x + (3 / x + 2) equals
2/x+3/(x+2)=12（x+2）+3x=x（x+2）2x+4+3x=x²+2xx²-3x-4=0（x-4）（x+1）=0x1=4 x2= -1
What is (X-2) (x-3) equal to
(X-2) (x-3) give me the answers and steps
(X-2) (x-3) = x ^ 2-3x-2x + 6 = x ^ 2-5x + 6, that is, (a-b) (A-C) = a ^ 2 - (B + C) x + BC
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