Question

1mn^2-4mn please solve this problem​

Answer 1

Step-by-step explanation:

Step by Step Solution:

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STEP

1

:

1.1 Evaluate : (m+n)2 = m2+2mn+n2

Trying to factor a multi variable polynomial :

1.2 Factoring m2 - 2mn + n2

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

Found a factorization : (m - n)•(m - n)

Detecting a perfect square :

1.3 m2 -2mn +n2 is a perfect square

It factors into (m-n)•(m-n)

which is another way of writing (m-n)2

How to recognize a perfect square trinomial:

• It has three terms

• Two of its terms are perfect squares themselves

• The remaining term is twice the product of the square roots of the other two terms

Final result :

(m - n)2