Question

pls answer these......

Answer 1

a) (x-1)(x²+x+1)

= (x³+x²+x-x²-x-1)

= (x³-1)

b) 4(3-2p) - 3(1-p)

= 12 - 8p - 3 + 3p

= 9 - 5p

c) (q+3r)(2q-r)

= 2q²-qr+6qr - 3r²

= 2q²+5qr - 3r²

d) (t-5) (t+3)

= t² + 3t - 5t - 15

= t² -2t - 15

e) 6k - 2(1-k) + 3

= 6k - 2 + 2k + 3

= 8k + 1