5(-2)³+8(-2)²-3(-2)+1

-1

Step-by-step explanation:

5×(-8)+8×4+6+1

-40+32+7

=-1

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7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐