19x+4-10=0
19x-6=0
19x=6
x=6/19
Объяснение:-5x^2+19x-4 = 0;
D = b^2-4ac = 361 - 80 = 281
x12 = -b+-√D/2a = -19+- √281 / -10
19x+4-10=0
19x-6=0
19x=6
x=6/19
Объяснение:-5x^2+19x-4 = 0;
D = b^2-4ac = 361 - 80 = 281
x12 = -b+-√D/2a = -19+- √281 / -10