Question

Find the value of x!

Answer 1

21.2

Explanation:

`x*(x+ 28) = 20* (20+32)\\\\x^2+28x-1040=0\\\\\ x=(-28\pm√(28^2-4\cdot1\cdot(-1040)))/(2\cdot1)= (-28\pm√(4944))/(2)\\\\x\approx21.2\quad or\quad x\approx-49.2`

x has to be >0 so the answer is 21.2

Answer 2

I think it is

24.6