Question

Simplify (a+5b)(a-2b)+(a-3b)(a-4b)

Answer 1

Answer:

2(a- b)^2

Step-by-step explanation:

(a+5b)(a- 2b) + (a - 3b)(a- 4b)

a^2 + 5ab - 2ab -10b^2 + a^2 -3ab -4ab +12b^2

2a^2 - 4ab+2b^2

2(a^2 -2ab +b^2)

2(a- b)^2