Question

1.(x + 1) (3 - x)
2.(5 - x) (X + 8)
find by inspection the efficient of X in the following expansion​

Answer 1

Answer:

1.) 3x -x^2 +3 -1x

x^2 +2x +3

2.) 5x +40 -x^2 -8x

x^2 +3x -40

Answer 2

Answer:

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