Question

If x+y=4, xy=7 then find x^2+y^2?​

Answer 1

(x+y)²=x²+y²+2xy

(4)²=x²+y²+2×(7)

16=x²+y²+14

x²+y²=16-14

x²+y²=2

Answer 2

Step-by-step explanation:

Evaluate

If 14112 = 2a 35 x 70, then find the values of a, b, and c.

(14² – 132, 213

(152 - 122,1/4

If 5X-3.32x-8 = 225, then find the value of x.