Question

5. If a+b=5
and a²+b²=13, then find the value of ab.​

Answer 1

the value of ab= 6........

Answer 2

Answer:

ab = 6

Step-by-step explanation:

${(a + b)}^{2} = {a}^{2} + {b}^{2} + 2ab \\ = > {5}^{2} = 13 + 2ab \\ = > 25 = 13 + 2ab \\ = > 25 - 13 = 2ab \\ = > 12 = 2ab \\ = > ab = \frac{12}{2} \\ = > ab = 6$