Question

please help me fast I want answer with explaination​

Answer 1

x=3m

Step-by-step explanation:

area of laun =60×40 x×40 -x×60+ x×X=2109

2400-100x +x²=2109

x²-100x+291==0

(x-97). (x-3)= 0

x= 97 or 3

x=3m