Question

Write an expression for the area of the rectangle in terms of x. Area 63, length x+2 width x

Answer 1

do you know formula for area of a rectangle ?

Answer 2

yep length times width

Answer 3

yes so than will be area = length time width so A =(x+2)*x
so 63=(x+2)*x

can you continue ?

Answer 4

x^2 +2x =63

x^2 +2x -63 = 0

can you factoriz it completly ?

Answer 5

x^2 +2x -63 = 0
(x+9)(x-7) =0

can you solve it now ?

Answer 6

yh thamk you for that

Answer 7

*thank

Answer 8

x+9=0
x=-9 this mean that the length equal 9

x-7=0
x=7 this result the width equal 7

Answer 9

because

63=9*7

Answer 10

do you understand it now sure ?