3 years ago

Expand and simplify (x-2)(2x+3)(x+1)

Mathematics

1 answer:

Anna [14]3 years ago

8 0

2x3 + x2 - 7x - 6 the 3 is supposed to be at the top.

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Please help and find the missing side x

faltersainse [42]

$\text{Hello there!}\\\\\text{A simple way to find the value of x is to find the scale factor}\\\\\text{When you flip the shapes to make it look exactly the same,}\\\text{you would see that the numbers are divisible to it}\\\\\text{Side 21 is congruent to side 3}\\\\\text{Divide 21 by 3 and you'll get 7 (1/7 sine we're going to a smaller shape)}\\\\\text{The x side is congruent to the 91 side}\\\\\text{Divide 91 by 7}\\\\91\div7=13\\\\\large\boxed{x=13}$