3x^2=-8+11x 10x+25=-x^2 3x-10x^2=-4 2x^2=27-3x 2x-3=2x^2

Question

3x^2=-8+11x
10x+25=-x^2
3x-10x^2=-4
2x^2=27-3x
2x-3=2x^2

Answer 1

Квадратное уравнение
1) 3х^2=-8+11х
3х^2-11х+8=0
a=3; b=-11; c=8
D=b^2-4ac= 121-4×3×8=121-96= 25=5^2
x1,2= -b+-D/2a= 11+-5/6= x1=8/3
x2=1