kalynjackson2447 kalynjackson2447

14-03-2020
Mathematics

contestada

Simplify
(2x2 - 5x + 3) - (-x2 + 4x - 5)
A)
x2-x-2
3x²-3x-2
3x²-x+ 5
3x² - 9x=8

Respuesta :

14-03-2020

Answer:

3x² - 9x + 8

Step-by-step explanation:

[tex](2x^2-5x+3)-(-x^2+4x-5)\\\\=2x^2-5x+3-(-x^2)-4x-(-5)\\\\=2x^2-5x+3+x^2-4x+5\qquad\text{combine like terms}\\\\=(2x^2+x^2)+(-5x-4x)+(3+5)\\\\=3x^2-9x+8[/tex]

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