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5 votes
What is the conjugate?

1.) √8- √9
2.) 2x^2+ √3
3.)a- √a-1
4.) √X+2 √b

1 Answer

3 votes

Explanation:


\text{A conjugate of}\ a+b\ \text{is}\ a-b.\\\\1)\ \sqrt8-\sqrt9\to\sqrt8+\sqrt9\\\\2)\ 2x^2+\sqrt3\to2x^2-\sqrt3\\\\3)\ a-√(a-1)\to a+√(a-1)\\\\4)\ √(x)+2√(b)\to√(x)-2√(b)

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