Question

Factorise : 80a² - 45b²

Answer 1

Answer:

(4root 5)^2-(3root 5)^2

$(4 \sqrt{5} + 3 \sqrt{5} )(4 \sqrt{5} - 3 \sqrt{5} )$

Hope this help u

Answer 2

Step-by-step explanation:

Algebric identify used

a2 -b2 =(a-b) (a+b)

Factorized 80a2 - 45b2

80a2 -45b2 = 5(16a2 - 9b2 )

= 5 ( (4a2) -(3b2)

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