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2x² +10x -2x -10
2x² +8x -10
(2x . x)+ (2x . 5) + (-2 . x) + (-2 . 5)
2x^2 + 10x +(-2x) + (-10)
2x^2 -8x- 10
ket:
.= kali
^2 + kuadrat
maaf kalok jawabannya salah