Question

(80-2x)(75-2x)=(80)(75)÷2

Answer 1

(80-2×)=78×

(75-2x)=73×

(78×).(73×)=5694

80x75=6000 ÷2=3000

5694×=3000

×= 3000 sobre 5694

X= 500 sobre 949

Answer 2

Respuesta:

Explicación paso a paso:

(80-2X)(75-2X)=(80)(75)÷2

6000-160X-150X+4X^2= 6000÷2

6000-310X+4X^2 = 3000

6000-310X+4X^2-3000 = 0

3000-310X+4X^2 = 0

4X^2 -310X + 3000 = 0

Dividimos entre 2

2X^2 - 155X + 1500 = 0