Question

solve the quadratic equation 7 x square - 5 x minus 2 and verify the relationship between its zeros and coefficients​

Answer 1

Answer:

Answer

x

2

+5x+6=0

x

2

+2x+3x+6=0

x(x+2)+3(x+3)=0

(x+2)(x+3)=0

x=−2,−3

∴α=−2,β=−3

α+β=−

a

b

−2−3=−

1

5

−5=−5

αβ=

a

c

(−2)(−3)=

1

6

6=6