Mathematics

Question

5x^2+30x+5y^2=15
how do I find the center and the radius.

1 Answer

  • DIVIDE EVERYTHING BY 5 ==>x²+6x+y²=3

    complete the square of x²+6x ===> x² + 6x + 9 - 9 ===>(x+3)²2 - 9

    ===>(x+3)² - 9 + y² = 3===>(x+3)² + y² = 12 this is the equation

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