Math, asked by ras34, 11 months ago

9x²+25y²=181 and xy=-6 find the value of 3x+5y

Answers

Answered by sarah92

2

Answer:(3x+5y)² = 9x²+25y²+2×3x×5y = 181+30×(–6)

(3x+5y)² = 181–180 = 1

3x+5y = 1

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