Question

Carry out the multiplication of the expressions in each of the following pairs:
(i) 4p, q + r
(ii) ab, a – b
(iii) a + b, 7a2b2
(iv) a2 – 9, 4a
(v) pq + qr + rp, 0​

Answer 1

Answer:

(i)4p*(q +r)

=(4p*q) +(4p*r)

=4pa+pr

(ii) =ab*(a-b)

=(ab*a) -(ab*b)

=(a*a) b-a(b*b)

=a²b-ab²

(iii) (a+b) *7a²b²

=(a*7a²b²)+(b*7a²b2

=7a³b²+7a²b³

(iv) (a²-9) *4a

=(a²*4a)-(9*4a)

=4a³-36a

(v) (pq+qr+rp) *0

=(pq*0)+(qr*0)+(rp*0)

=O+0+0

=0