Phân tích thành nhân tử\(\left(a-b\right)^2-\left(b-a\right)\)\(5\left(a+b\right)^2-\left(a+b\right)\left(a-b\right)\)\(7x\:\left(y-4\right)^2-\left(4-y\right)^3\)\(x^3+2x^2+2x+1\)\(4a^{2\:}b^2+36a^2b^3+6ab^4\)\(5x\:-2xy\)\(x\left(x+y\right)-5x-5y\)\(\left(12x\:...
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Phân tích thành nhân tử
\(\left(a-b\right)^2-\left(b-a\right)\)
\(5\left(a+b\right)^2-\left(a+b\right)\left(a-b\right)\)
\(7x\:\left(y-4\right)^2-\left(4-y\right)^3\)
\(x^3+2x^2+2x+1\)
\(4a^{2\:}b^2+36a^2b^3+6ab^4\)
\(5x\:-2xy\)
\(x\left(x+y\right)-5x-5y\)
\(\left(12x\: ^2+6x\right)\left(y+Z\right)+\left(12x^2+6x\right)\left(y-Z\right)\)
\(\left(a-b\right)^2-\left(b-a\right)\)
\(=\left(a-b\right)^2+\left(a-b\right)\)
\(=\left(a-b\right)\left(a-b+1\right)\)
\(5\left(a+b\right)^2-\left(a+b\right)\left(a-b\right)\)
\(=\left(a+b\right)\left[5\left(a+b\right)-\left(a-b\right)\right]\)
\(=\left(a+b\right)\left[5a+5b-a+b\right]\)
\(=\left(a+b\right)\left[4a+6b\right]\)