Question

in the figure, the width of the border picture is x cm. the picture has an area of 160cm
(i) form an equation in x and how that it reduces to x^2-8x+40=0
(ii)solve the equation x^2 -18x+40=0,giving both your answers correct to 2 decimal s.f
(iii)write down the width of the border ,giving your answer correct to 2 s.f

Answer 1

Answer:

2×18+40=0 yes ho jaye gaa