Question

.x²+x=15. Find the value of 'x'​​

Answer 1

Explanation:

Either x = 15 or x=. 14

hope this is the answer .

Answer 2

Answer:

The vale of 'x' are: (-1±√61)/2

Explanation:

Here x²+x=15

=> x²+x-15=0

$x = \frac{-b± \sqrt{b²-4ac} }{2a} \\ = \frac{-1± \sqrt{1-4 \times 1 \times (-15)} }{2×1} \\ = \frac{ - 1± \sqrt{61} }{2}$

The above mentioned are the answers.