Question

9X²+12X=32 (Bhaskara)

Answer 1

Δ=b² - 4×a×c
Δ=12² - 4×9×0
Δ=144 - 0
Δ=144

x= -b +/- √Δ ÷ 2×a
x= -(+12) +/- √144 ÷ 2×9
x= -12 +/- 12 ÷ 18

x'= -12 +12 ÷ 18                x''= -12 -12 ÷ 18
x'= 0 ÷ 18                          x''= -24 ÷ 18
x'= 0                                  x''= -1,3333...

Answer 2

9x² + 12x = 32

9x² + 12x - 32 = 0

A= 9

B= 12

C= - 32

∆= b² - 4ac

∆= 12² - 4 • 9 • ( - 32)

∆= 144 + 1152

∆= 1296

x= - b ± √∆ / 2a

x= - 12 ± √1296 / 2 • 9

x'= - 12 + 36/18 = 24/18 = 4/3

x''= - 12 - 36/18 = 48/18 = 8/3

S= ( 4/3 , 8/3)