Q 1: (7x9y)  (9x+7y) + (7x+9y) = _____ ? 5x+7y 3x+10y 5x7y 3x+7y

Q 2: Add (k+l) and (kl). 1 0 2k 2k+2l

Q 3: 7x^{2}(3x^{4}+7xyx^{2}) = _____ ? 21x^{6} + 49x^{2}y^{2} 21x^{6} + 49x^{3}y^{2} 21x^{2} + 49x^{6}y^{2}

Q 4: (5ab^{2})^{2} = _____ ? 25a^{4}b^{2} 10a^{2}b^{4} 25a^{2}b^{4} 25a^{4}b^{4}

Q 5: 19x * 17 = _____ ? Answer:

Q 6: There are 90 students in a class. On a day when x students are absent, there are 84 students in the class, find x. 5 6 7

Q 7: 10x^{2}(6x+9y+8xz) = ______ ? 60x^{3}+90x^{2}y+80x^{3}z 60x^{3}+21x^{2}y+27x^{2}y 60x^{2}+90x^{3}y+80x^{3}z 30x^{3}+35x^{2}y^{3}+35x^{3}y

Q 8: 10 ^{ 4 }= _____ 100 1,000 10,000

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!

