How do you simplify $(7 m^{2} + 9 m + 3) - (3 m^{2} + 8 m + 2)$ $(7m^2 + 9m + 3) - (3m^2 + 8m + 2)$ ?

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How do you simplify $(7 m^{2} + 9 m + 3) - (3 m^{2} + 8 m + 2)$ $(7m^2 + 9m + 3) - (3m^2 + 8m + 2)$ ?

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Answer 1 · 2015-06-12T14:46:18

$(7 m^{2} + 9 m + 3) - (3 m^{2} + 8 m + 2) = 4 m^{2} + m + 1$ $(7m^2 + 9m + 3) - (3m^2 + 8m + 2)=4m^2+m+1$

Explanation:

$(7 m^{2} + 9 m + 3) - (3 m^{2} + 8 m + 2) = 4 m^{2} + m + 1$ $(7m^2 + 9m + 3) - (3m^2 + 8m + 2)=4m^2+m+1$
This surely isn't a perfect square trinomial, so you can try to simplify it with the Delta formula:
$Delta_m=1-4*4=-15<0$
So this trinomial is not simplifiable anymore in the real number system.

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How do you simplify $(7 m^{2} + 9 m + 3) - (3 m^{2} + 8 m + 2)$ $(7m^2 + 9m + 3) - (3m^2 + 8m + 2)$ ?

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