[" (a) Explain,why "(17times5times11times3times2+2times11)" is a "],[" composite number."]

Explain why (7 times 11 times 13)+13 " and " (7 times 6 times 5 times 4 times 3 times 2 times 1)+5 are composite numbers.

Explain Why 7times11times13times+13 and 7times6times5times4times3times2times1times+5 are composite number.

Is [(-5)times2)]times3 = (-5)times[(2times3)] ?

Explain why: 11xx13xx17+17 is a composite number.

The number 17 times 11 times 2 +17 times 11 times 5 is……………

(3times7^(2)times11^(8))/(21times11^(3))

Explain why 3 xx 5 xx 7 +7 is a composite number.

Explain why 3 xx 5 xx 7 +7 is a composite number.

Simplify -(2)/(3)times5(1)/(2)times2times7(5)/(6)times(9)/(11)