Question

x=-2 y=3 solve x²+3-2(xy-2)​

Answer 1

Given equation is,

(x−y)

2

=x

2

−2xy+y

2

For x=2 and y=−3

LHS=(x−y)

2

=(2−(−3))

2

=(2+3)

2

=(5)

2

=25

RHS=x

2

−2xy+y

2

=(2)

2

−2×2×(−3)+(−3)

2

=4+12+9=25

Hence, LHS=RHS. verified.

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taking “y” outside as common

Answer 2

Step-by-step explanation:

Given:-

• x=-2
• y=3

To find:-

• x²+3-2(xy-2)

$⟹ \: ( - 2) {}^{2} + 3 - 2(( - 2)(3) - 2) \\ ⟹</p><p>4 + 3 - 2( - 6- 2) \\ ⟹4 + 3 - 2( - 8) \\ ⟹4 + 3 + 16 \\ \green{ ⟹</p><p>23..is \: the \: answer..}</p><p>$

➡Thus:- the correct answer is 23..