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ответ: x1= -2; x2= 1,25
4x²+3x-10=0
а=4, b=3, c=-10
D= b^2-4ac= 3^2-4*4*(-10)= 9+160=169
x1= -b-√D/2a= -3-13/2*4= -16/8= -2
x2= -b+√D/2a= -3+13/2*4= 10/8= 1,25
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ответ: x1= -2; x2= 1,25
4x²+3x-10=0
а=4, b=3, c=-10
D= b^2-4ac= 3^2-4*4*(-10)= 9+160=169
x1= -b-√D/2a= -3-13/2*4= -16/8= -2
x2= -b+√D/2a= -3+13/2*4= 10/8= 1,25