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Variables and Squares, See the working below for the problem. Solve: 3√(6𝑥 + 9) + 8 = 5 Solution Answers: x= -6. Work: 3√6𝑥 + 9 + 8 = 5 3√6𝑥 + 9 = 5–8 3√6𝑥 + 9 = –3. We cube both sides 6 𝑥 +9 = -27 6 𝑥 = –36 𝑥 = –6 Variables and […]
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Squares and square roots: Equations Find the real value(s) of x that verify: √𝑥 + √7𝑥 + 2 = 0 solution Answer: NO REAL VALUES. Work: Let √𝑥 be a and √ (7x +2) be b If a>=0, b>=0 then√𝑥 (a) + √ (7x +2)(b)=0, Then a=b=0, for this equation to be
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