Question

plz do no. 6 7 8

and as fast as possible

Answer 1

The solution is provided in the attachment.
PLEASE MARK AS BRAINLIEST

Answer 2

6.

sol. a²+b²+c²-2ab-2bc-2ca+3abc

⇒2²+3²+(-2)²-2×2×3-2×3×(-2)-2×(-2)×2+3×2×3×(-2)

⇒4+9+4-12-12+8-36

⇒25-36

⇒-11 Ans

7.

sol. p³+q³-r³-3pqr

⇒4³+(-3)³-2³-3×4×(-3)×2

⇒64-27-8+72

⇒101 Ans

8.

sol. 2mn^4-15m²n+p

⇒2×1×2^4-15×1²×2+(-3)

⇒2×16-30-3

⇒32-30-3

⇒ -1 Ans

i hope this is right answers.