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2a b(a - a+ 1)- ab(2a4 -2a2 +a)-ab(a + a -1) |
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Answer» 2a^5b-2a^3b+2a^2b-2a^5b+2a^3b-a^2b-a^4b-a^2b+ab=ab-a^4b=ab(1-a^3)now X3-Y3 =(X-Y) • (X2 +XY +Y2).hence(1^3-a^3)=(1-a)(1+a+a^2)hence=ab(1-a)(1+a+a^2) |
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