x² - xy + y² when x = -2, y = 2 value of expression is _____?
- 13
- -12
- 12
- None of these
Explanation
x² - xy + y²
= (-2)² - (-2)(2) + (2)²
= 4 + 4 + 4
= 12
Related MCQs
- 3
- -3
- -4
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 2.5
- 3.5
- 4.5
- None of these
x² - xy + y²
= (-2)² - (-2)(2) + (2)²
= 4 + 4 + 4
= 12
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