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Lisa [10]
3 years ago
15

Simplify the expression 3x²-5x-4+xy-(2xy+2x²) then evaluate the result if x=-1 and y=6

Mathematics
2 answers:
Anvisha [2.4K]3 years ago
6 0
-6 is what it would be plugging the x and y values in
lidiya [134]3 years ago
5 0
3x²-5x-4+xy-(2xy+2x²) Simplified is x²-5x-4-xy
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JK = 7x + 9<br> JL = 114, and<br> KL = 9x + 9,<br> Find KL.
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Answer:

KL= 63

Step-by-step explanation:

JK=7x+9 , JL=114 , KL=9x+9 ( if the points are on the same line and point J at the end point and K in the middle)

*J_______________________K___________________________L

JL=JK+KL

114=7x+9+9x+9

114-18=16 x

16x=98

x=98/16=6

KL= 9x+9

KL=9(6)+9

KL= 63

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