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= (2x - 5)(x + 1)
Jadi :
2x - 5 = 0 atau x + 1 = 0
2x = 5 x = -1
x = 5/2
2x²-5x+2x-5=0
x(2x-5)+1(2x-5)=0
(x+1)(2x-5)=0
x=-1 atau 2x=5
x=5/2
semoga bermanfaat