Tolong dong bantuin soal no.5-8
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6x²+5x-4 = 6x²-3x+8x-4
= 3x(2x-1)+4(2x-1)
= (3x+4)(2x-1)
No.6
(2x+1)(x+3) = 2x(x+3)+1(x+3)
= 6x²+6x+1x+3
= 6x²+7x+3
yg lain nya nggk tw... dan maaf yach klw slah..