Question

Q.11: Find the continued products of the following:
(a+1) (a-1) (a2 +1)
Q.12: Express each of the following as the difference of two squares:
(3a+b) (3a-b)
Q.13: Simplify: 9x2-12xy+4y2
Q.14: If p+ - = 5 show that p2 +
р
p2
Q.15: Evaluate the following expressions using formula;
16a2+24ab+9b2, when a=4, b=3​

Answer 1

Answer:

11.

(a+1)(a-1) (a2+1)

(a2-1) (a2+1)

(a4-1)

12.. (3a+b) (3a-b)

(9a2-b2)

13.. 9x2-12xy+4y

3×3×x×x- 2×3×2×x×y+2×2×y×y

(a+b)2= a2+b2+2ab

(3x-2y)2

Answer 2

question11, question 12, question 16