Question

Factorise (m²n)²-7(m²+n)+6

Answer 1

HEY MATE THE ANSWER IS

LET ( m² + n ) = x

so, x² -7x + 6 = 0

=> x² - x - 6x + 6 = 0

=> x(x-1) -6 ( x-1 ) = 0

=> (x- 6)(x-1) = 0

=> x= 6 and 1

so, m² + n = 6 and 1

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