Question

31. (3x2 + 5x – 7)(x - 1) - (x2 – 2x +3)(x +4)​

Answer 1

Answer:

(6+5x-7)x-1-(2x-2x+3)x+4

(5x-1)x-1-3×x+4

5x-1× x-1-3x+4

2x-1-1-3+4×x

2x-1×x

2x-x

Answer 2

Answer:

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