Question

I need help urgently factorise :a squared divided by 8 minus b squared divided by 50.​

Answer 1

Answer: 1/200 * (5a-2b)(5a+2b)

Explanation:

a^2/8 - b^2/50

Factor out 1/200,

1/200 * (25a^2 - 4b^2)

Using a^2 - b^2 = (a-b)(a+b),

1/200 * (5a-2b)(5a+2b)

Answer 2

1/2(a/2+b/5)(a/2-b/5)

Explanation:

a²/8- b²/50= 1/2(a²/4- b²/25)= 1/2(a/2+b/5)(a/2-b/5)