Mathematics
Discuss the nature of the roots of the following equation without actually solving it:
25x2 + 30x + 7 = 0
Quadratic Equations
2 Likes
Answer
Comparing 25x2 + 30x + 7 = 0 with ax2 + bx + c = 0 we get,
a = 25, b = 30 and c = 7.
We know that,
Discriminant (D) = b2 - 4ac = (30)2 - 4 × 25 × 7
= 900 - 700 = 200; which is positive, but not a perfect square.
Hence, the roots are irrational and unequal.
Answered By
1 Like
Related Questions
Discuss the nature of the roots of the following equation without actually solving it:
x2 - 8x + 7 = 0
Discuss the nature of the roots of the following equation without actually solving it:
6x2 + 7x - 10 = 0
Discuss the nature of the roots of the following equation without actually solving it:
15x2 - 28 = x
Discuss the nature of the roots of the following equation without actually solving it:
16x2 = 24x + 1