heavenxleah heavenxleah

24-03-2017
Mathematics

contestada

What is the expression in factored form?

9x2 - 12x + 4

A. (3x - 2)2
B. (-3x - 2)2
C. (-3x + 2)(3x - 2)
D. (3x + 2)2

Respuesta :

JoshEast JoshEast

24-03-2017

9x² - 12x + 4

write the equation with two middle terms that multiply to give 36
9x² - 6x - 6x + 4

by factorisation
3x(3x - 2) - 2(3x - 2)

(3x - 2)²

Thus OPTION A

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