Question

solve 7 question please......​

Answer 1

Step-by-step explanation:

p = 2 - a

a = 2 - p

a³ + 6ap + p³-8

(2-p)³ + 6p(2-p) + p³ - 8

8 - p³ + 6p² - 12p + 12p - 6p² + p³ - 8

8 - 8 +6p²-6p²+12p-12p+p³-p³

0

Thus proven.

Answer 2

Answer:

Step-by-step explanation:

P=2-a

a*3 + 6ap + p*3 -8

a*3 + 6a(2-a) + (2-a)*3 -8

a*3 + 12a - 6a*2 +(2)*3 - 3(2)*2(a) + 3(2)(a) *2-(a) *3-8

a*3+12a-6a*2+8-12a+6a*2-a*3-8

=0

Hope this helps