10x²+bx-2=0 x1 = -2
10*4-2b-2=0
2b = 38
b = 19
10x²+19x-2=0
D = b²-4ac
D= 361 +80 = 441 = 21²
x1== -2
x2= ==0,1
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
10x²+bx-2=0 x1 = -2
10*4-2b-2=0
2b = 38
b = 19
10x²+19x-2=0
D = b²-4ac
D= 361 +80 = 441 = 21²
x1== -2
x2= ==0,1