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c=12

Q: The value of c which makes x2 - 24x plus c a perfect square is?

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81.

A perfect square is a binomial squared, like (x+3)^2. You would calculate this by remembering: Square the first, twice the product, square the last. So x^2 (square the first), plus 6x (twice the product), plus 9 (square the last), so we get x^2+6x+9. We can factor this in reverse to see that this is a perfect square. With this simple trick, you can solve for perfect squares.

false, in order to be one 8 would have to be a square number which it is not. So the constant term in the trinomial would need to be 4, 9, 16 etc.

C Square

The square root of 27 plus the square root of 5 = 7.4322204

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c = 25 4x2 + 20x + 25 (2x + 5)(2x + 5)