3 years ago

Factor completely 2x2 - 18. Prime 2(x2 - 9) 2(x + 3)(x - 3) 2(x + 3)(x + 3)

Mathematics

2 answers:

zhenek [66]3 years ago

7 0

$2 x^{2} - 18= 2( x^{2} - 9)= 2(x + 3)(x - 3)$

kap26 [50]3 years ago

7 0

2x² - 18
2(x²) - 2(9)
2(x² - 9)
2(x² + 3x - 3x - 9)
2x(x(x) + x(3) - 3(x) - 3(3))
2x(x(x + 3) - 3(x + 3))
2x(x - 3)(x + 3)

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