Question

Carry out the multiplication of the expression in each of the following pairs 4p,q+r​

Answer 1

Answer:

i)4p, q + r

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

=4pq + 4pr

ii)ab, a − b

ab(a - b) = = (ab x a) + (ab x -a)

=a²b - ab²

iii) a + b, 7a²b²

(a + b) (7a²b²) = ( a x 7a²b²) + (b x 7a²b²)

=7a³b²+ 7a²b³

iv) a²− 9, 4a

(a² - 9)(4a) = (a² x 4a) + ( -9 x 4a)

= 4a³ - 36a

v) pq + qr + rp, 0

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

= 0

Step-by-step explanation:

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