Answers edited by Erudite

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How do you simplify 4 sq.root of 75 + sq.root of 27.?
How do you write 14.05 billion in scientific notation?
How do find the vertex and axis of symmetry, and intercepts for a quadratic equation $f (x) = - x^{2} + 10$ $f(x) = -x^2 + 10$ ?
How do you solve $- 2 (x - 4) = 15$ $-2(x-4)=15$ ?
Question #fdeca
How do you convert 315 degrees into radians?
How do you simplify square root of 8 - the square root of 66?
How do you solve the simultaneous equations $7 a - 3 b = 17$ $7a - 3b = 17$ and $2 a + b = 16$ $2a + b = 16$ ?