Respuesta :

Answer:

712

Step-by-step explanation:

So what you do is you have to substitute -9 for a and -4 b.

7(-4)^2 +5((-9)(-4)-6)=

=7(16)+5(30)=

=112+600=

=712

anyeli0816

Answer:

Step-by-step explanation:

You see if A if are added you or divided by or multiply by B that’s the way how you do it

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