Question

18. Expand the following using the identity (a+b). (a - b)
i) (2x + 5)2 ii) (6-7)
50 are given belos​

Answer 1

Answer:

(i) y − z

(ii)

(iii) z2

(iv)

(v) x2 + y2

(vi) 5 + 3 (mn)

(vii) 10 − yz

(viii) ab − (a + b