Question

Factorise: 72x^2-32y^4

Answer 1

Answer:

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Step-by-step explanation:

72x^2-32y^4

= 4(18x^2-8y^4)=0

18x^2-8y^4=0

2(9x^2-4y^4)=0

9x^2-4y^4=0

(3x)^2-(2y^2)^2=0. ( a^2-b^2=(a+b)(a-b) )

(3x-2y^2) (3x+2y^2)

Done..