Question

Let the area of a rectangle in square metres is x^2+13x+42 how much longer is the length than the width of the rectangle

Answer 1

1

Explanation:

Area of rectangle

lw

So we have to factorise the expression

x²+13x+42

x²+6x+7x+42

x(x+6)+7(x+6)

(x+7)(x+6)

So

x+7-(x+6)

x+7-x-6

1