Q 1: 2(AB) = ______ ? 18x3y21z 4x20y12z 14z

Q 2: 4(BD) = ______ ? 4x20y12z 9x^{2}+12y^{2}3xy+21zx+14zy 12x7y31z43xy32zx52zy

Q 3: AB+BC = _______ ? 90x^{2}+48y^{2}+102xy+126zx+84yz 45x^{2}+24y^{2}+51xy+63zx+42zy 12x7y31z43xy32zx52zy

Q 4: 3(BC) = ______ ? 18x3y21z 12x7y31z43xy32zx52zy 4x20y12z

Q 5: AD+BD = _______ ? 45x^{2}+24y^{2}+51xy+63zx+42zy 12x^{2}+28y^{2}+21z^{2}+50xy+32zx+61yz 90x^{2}+48y^{2}+102xy+126zx+84yz

Q 6: 2(A+B+C+D) = ___ ? 12x7y31z43xy32zx52zy 12x^{2}+28y^{2}+21z^{2}+50xy+32zx+61yz 34x+28y+34z

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Question 8: This question is available to subscribers only!

