Which is a factor of 18x2 + 3x − 6? A. 2x + 1 B. 2x + 3 C. 3x + 2 D. 3x − 1

Mathematics

1 answer:

Angelina_Jolie [31]3 years ago

7 0

$18x^2+3x-6=3(6x^2+x-2)=3(6x^2+4x-3x-2)\\\\=3[2x(3x+2)-1(3x+2)]=3(3x+2)(2x-1)\\\\Answer:\ \boxed{C.\ 3x+2}$

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◆ LINES AND ANGLES ◆

$as \: shown \: in \: figure , \\ \\ angle \: 1 \: and \: angle \: 2 \: form \: linear \: pair \: , \\ \\ therefore \: \: , \\ \: \\ angle \: 1 \: \: + \: \: angle \: 2 = 180 \\ \\ given \: that \: angle \: 1 = 40 \\ \\ 40 + angle \: 2 = 180 \\ \\ angle \: 2 = 140 \: ans.$