write and simplify an expression for the area of the triangle
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Answer:
Step-by-step explanation:
The area of the triangle is
B*h/2
Where B=x+5 and h=x-2 so if we substitute
(x+5)*(x-2)/2 =
(x^2 +3*x -10)/2=
x^2/2 + 3/2 *x -5