Question

Factorise each of the following.
(a) (x+y)² - 14(x + y) + 49
(b) (a +36)² - (2c + d)²
(c) 25 - (u - v)²
(d) 36(m + n)² - 169(r + 2s)²
please do at least a and b
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Answer 1

Answer:

(a) (x+y-7)(x+y-7)

(b) (a+36+2c+d)(a+36-2c-d)

(c) (5+u-v)(5-u+v)

(d) (6m+6n+13r+26s)(6m+6n-13r-26s)

Step-by-step explanation:

(a) Putting formula a²+b²-2ab=(a-b)²

(b) Putting formula a²-b²=(a-b)(a+b)

(c) Putting formula a²-b²=(a-b)(a+b)

(d) Putting formula a²-b²=(a-b)(a+b)