Answer:
Step-by-stepapex answer to the left of 9.9 and to the right of 9.3 explanation:
If you are searching for the number that makes the whole expression a perfect square, you need to take b, divide it by 2, then square it, like this:
In this case, b is -7. You would then divide it by 2 to get 3.5, then square it.
You can plug this into a calculator to get an exact value, but this is what c is supposed to be to make a perfect square trinomial. 'b' is always the number next to 'X'.
Answer:
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7(2x-5)-(10-3x)
; (14x-5)-(10-3x)
; (17x-5)-10
; 17x-15