square of difference se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.
4 questions tagged with square of difference.
What is the correct expansion of ((x-11)2)?
A. \(x^2-22x+121\)
((a-b)2=a-2-2ab+b-2). Therefore the middle term is (-22x).
The correct answer is A. \(x^2-22x+121\). ((a-b)2=a-2-2ab+b-2). Therefore the middle term is (-22x).
((a-b)2=a-2-2ab+b-2) होता है। इसलिए मध्य पद (-22x) है।
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What is the correct expansion of ((x-9)2)?
A. \(x^2-18x+81\)
((a-b)2=a-2-2ab+b-2). Therefore the middle term is (-18x).
The correct answer is A. \(x^2-18x+81\). ((a-b)2=a-2-2ab+b-2). Therefore the middle term is (-18x).
((a-b)2=a-2-2ab+b-2) होता है। इसलिए मध्य पद (-18x) है।
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What is the correct expansion of ((x-6)2)?
A. \(x^2-12x+36\)
((a-b)2=a-2-2ab+b-2). Therefore the middle term is (-12x).
The correct answer is A. \(x^2-12x+36\). ((a-b)2=a-2-2ab+b-2). Therefore the middle term is (-12x).
((a-b)2=a-2-2ab+b-2) होता है। इसलिए मध्य पद (-12x) है।
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If \(x=\sqrt{5}-\sqrt{2}\), what is \(x^2\)?
A. \(7-2\sqrt{10}\)
Use ((a-b)2=a-2-2ab+b-2).
\(x^2=5-2\sqrt{10}+2=7-2\sqrt{10}\).
Do not forget the negative sign in the middle term when squaring a difference. चरण 1: ((a-b)2=a-2-2ab+b-2) का प्रयोग करें। चरण 2: \(x^2=5-2\sqrt{10}+2=7-2\sqrt{10}\)। चरण 3: अंतर के वर्ग में बीच वाले पद का ऋण चिह्न न भूलें।
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