Question

factorise 72x^2+120xy-50y^2


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Answer 1

ANSWER:

(6x + 5y)•(6x + 5y)

Step-by-step explanation:

((72 • (x2)) + 120xy) + (2•52y2)

STEP

2

:

Equation at the end of step

2

:

((23•32x2) + 120xy) + (2•52y2)

STEP

3

:

STEP

4

:

Pulling out like terms

4.1 Pull out like factors :

72x2 + 120xy + 50y2 = 2 • (36x2 + 60xy + 25y2)

Trying to factor a multi variable polynomial :

4.2 Factoring 36x2 + 60xy + 25y2

Try to factor this multi-variable trinomial using trial and error

Found a factorization : (6x + 5y)•(6x + 5y)