3 years ago

CALLING ALL MATHS GENIUSES

Mathematics

2 answers:

erastova [34]3 years ago

7 0

Area is length times width
(X+9)(X-1)
X^2+8x-9

s2008m [1.1K]3 years ago

3 0

Got you. So we will use the basic formula for the area of a rectangle and insert variable values. (^_^)

Area= Width(Height) ----------- Insert values of width and height [width = (x-1)
, height = (x+9)]

Area= (x-1)(x+9) ) -------------- Then expand if needed?
= x² +8x -9

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