3 years ago

Find the value of the expression: 2xy+2x^2 for x=−2.5 and y=−7.5

Mathematics

2 answers:

faust18 [17]3 years ago

7 0

2(2.5)+2(7.5)+2(2.5)+2
5+9.5+5+2
14.5+7
21.5

ZanzabumX [31]3 years ago

5 0

Answer:

50.5

Step-by-step explanation:

2xy+2x^2 And we know x=-2.5 and y=-7.5.

In order of operations, exponents come first.

x^2 = -2.5 * -2.5 = 6.5.

6.5*2=13.

2xy + 13

2x=-5

-5*-7.5 = 37.5

37.5 + 13

50.5

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