3 years ago

1. -2x(x+3)-(x+1)(x-2) =

Mathematics

1 answer:

Simora [160]3 years ago

5 0

Answer:

$-3x^2 -7x + 2$

Step-by-step explanation:

Given

$-2x(x + 3) - (x+1)(x - 2)$

Required

Solve

Open brackets

$-2x^2 -6x - (x^2-2x + x - 2)$

$-2x^2 -6x - x^2-2x + x + 2$

Collect like terms

$- x^2-2x^2 -6x -2x + x + 2$

$-3x^2 -7x + 2$

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