Jawapan

2015-04-26T10:30:08+08:00
2x^2 + 4x + 2 = p(x+3)
2x^2+4x+2=px+3p
2x^2+4x-px+2-3p=0

a=2  b=4x-px  c=2-3p
b^2-4ac>0
masukkan
(4-p)^2- 4(2)(2-3p)>0
p^2-8p+16-8(2-3p)>0
p^2-8p+16-16+24p>0
p^2+16p>0
faktorkan
p(p+16)>0
p=0, p= -16