(3x - 2) (2x + 5) = ax2 + bx + c. Nilai + b + c = tolong pke cara ya
Matematika
indahaha
Pertanyaan
(3x - 2) (2x + 5) = ax2 + bx + c. Nilai + b + c = tolong pke cara ya
1 Jawaban
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1. Jawaban KelvinSupranata
(3x - 2) (2x + 5) = ax2 + bx + c
caranya tinggal di kalikan saja dlu
(3x - 2) (2x + 5) = 3x.2x + 3x.5 + ( -2.2x) + (-2.5)
= 6x^2 + 15x + (-4x) + (-10)
= 6x^2 + 11x - 10
jadi a = 6 , b = 11, c = (-10)
a + b + c = 6 + 11 + (-10) = 7