The area of a rectanglular television screen is 1837 in^2. the width of the screen is 22.4 inches longer than the height. therefore, the quadratic equation that can be used to represent the area of the television screan is h(h+22.4)=1837. if you multiply, you then have the equivalent equation, h^2+22.4h=1837. complete the square to find the dimensions of the screen.

the equation second grade is

h^2+22,4h  =   1837

you  must subtract the second coefficient  and divide it by 2 ; 22,4 / 2 =  11,2, then  elevate it  to 2, ( 11,2 )^2 = 125,44

then

h^2+22,4h + 125,44 -125,44 = 1837

now √h^2 = h and  √125,44 = 11,2

(h+11,2)^2  -125,44 = 1837 ( dimensions of the screen )

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8

where is abdul's work? don't see that anywhere posted : /

step-by-step explanation: