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HELP MATH AHH URGENT PLS

HELP MATH AHH URGENT PLS-example-1
User Nickspiel
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1 Answer

3 votes

Answer:

Explanation:

Area of a triangle: .5(b*h)

which means that

.5(4(x-1)*(2x+5))=30

mulitply the two equations

(4x-4)(2x+5) = 8x²+12x-20

distribute the 1/2

.5(8x²+12x-20)

4x²+6x-10 = 30

divide both sides by 2

2x²+3x-5= 15

move everything to one side

2x²+3x-20=0

not sure if you need to solve it but x= 2.5 or x= -4

User ThePumpkinMaster
by
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