Question

Simplify.

(i) (x2

– 5) (x + 5) + 25

(ii) (a2

+ 5) (b3

+ 3) + 5

(iii) (t + s2

) (t2

– s)

(iv) (a + b) (c – d) + (a – b) (c + d) + 2 (ac + bd)

(v) (x + y)(2x + y) + (x + 2y)(x – y)

(vi) (x + y)(x2

– xy + y2)

(vii) (1.5x – 4y)(1.5x + 4y + 3) – 4.5x + 12y

(viii) (a + b + c)(a + b – c)​

Answer 1

$\huge\fbox{\dag Attachment \dag}$