Respuesta :
(-2m +5n)^2 is a perfect square.
It expands to the trinomial 4m^2 -20mn +25n^2, a "perfect square trinomial."
It expands to the trinomial 4m^2 -20mn +25n^2, a "perfect square trinomial."
A equivalent term to [tex](-2m + 5n)^2[/tex] is a perfect square trinomial [tex]4m^2-20mn+25n^2[/tex]
What is expression?
"It is a mathematical statement which consists of numbers, variables and some mathematical operations."
What is trinomial?
"It is a polynomial which has only three terms."
What is perfect square trinomial?
"When a trinomial can be factored into a binomial multiplied to itself, then its is a perfect square trinomial."
For given question,
We have been given a quadratic expression [tex](-2m + 5n)^2[/tex].
We need to find to find an equivalent expression to given expression.
Consider given expression,
[tex]\Rightarrow (-2m + 5n)^2 = (2m)^2-2(2m)(5n)+(5n)^2\\\\\Rightarrow (-2m + 5n)^2 =4m^2-20mn+25n^2[/tex]
We can observe that a trinomial [tex]4m^2-20mn+25n^2[/tex] is a perfect square trinomial.
Therefore, an equivalent term to [tex](-2m + 5n)^2[/tex] is a perfect square trinomial [tex]4m^2-20mn+25n^2[/tex]
Learn more about perfect square trinomial here:
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