Question

simplyfy the expression and find its value
When x = -3 and y = 5
2(x²+2xy) + 5 - xy + y ²​

Answer 1

Answer:

X= -3, y=5

2[(x)2+x y] + 5-x y+(y)2

2[(-3)2+(-3*5)]+5-(-3*5)+(5)2

2[9-15]+5+15+25

2(-6)+45

-12+45

33

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Answer 2

Answer:

ans is 3. please check degree clearly without confusion other wise the ans will be useless.

Step-by-step explanation:

x=(-3)

y=5

2(x2+2xy)+5-xy+y2

substituting x, y values we get,

= 2[(-3)2+ 2(-3)(5)]+5-[(-3)(5)]+52

= 2 [9-30]+5+15+25

= 2(-21)+45

= -42+45

= 3