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Assignments Class 8 for Algebraic Expressions and Identities Exercise 4

Question 1

Use a suitable identity to get each of the following products.

(a)

(b)

(c)

(d)

(e) (1.1 m - 0.4) (1.1 m + 0.4)

(f)

(g)

(h)

(i)

(j)

(k)

(l)

(m)

(n)

(o)

(p)

Question 2

Use the identify (x + a) (x + b) = to find the following products.

(i)

(ii)

(iii)

(iv)

(v)

(vi)

Question 3

Simplify the following

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

Question 4

Using identities, evaluate.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)

(k)

(l)

(m)

(n)

(o)

Question 5

Find the value of x if 8x =

Question 6

(a) If , find the value of

(b) If p + q = 13 and pq = 22, then