Matematika Sekolah Menengah Pertama 4x² = 3(4x + 5)Pakai rumus A.B.C​

zionkuphalulv – April 10, 2023

4x² = 3(4x + 5)

Pakai rumus A.B.C​

Penyelesaian:

4x²=3(4x+5)

4x²=12x+15

4x²-12x-15=0

D=b²-4ac

D=(-12)²-4(4)(-15)

D=144-16(-15)

D=144+240

D=384

----------------------------------

x=b±√D/2a

x=-12±√384/2(4)

x=-12±√384/8

-----------------

x=-12+√384/8

x=-12-√384/8

[tex]\boxed{ \colorbox{black}{ \sf{ \color{lightgreen}{ answered\:by\:Duone}}}}[/tex]

[answer.2.content]