Question

a+b= 8 & a^2 + b^2 = 34; find ab.​

Answer 1

Answer:

here x is a and y is b

xy is 15

Step-by-step explanation:

${(x + y)}^{2} = {8}^{2} \\ {x}^{2} + {y}^{2} + 2xy = 64 \\ = 34 + 2xy = 64 \\ = 2xy = 30 \\ xy = 15$