Question

3.The nature of roots of quadratic equation x2-5x-7 = 0 are real and equal.True or false

Answer 1

Answer:

False

Step-by-step explanation:

Lets find the value of

${b}^{2} - 4ac \: = {( - 5)}^{2} - 4 \times 2 \times ( - 7)$

$= 25 + 56 = 81$

since it is positive and greater than zero, the roots are real and unequal