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Q: Solve x squared - 14x equals -49?

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-x2+14x=49

63

Re-arranging, x2 - 14x +49 = 0 Factorising, (x-2)(x-2) = 0, hence x=2.

x2 - 14x = -49 ∴ x2 - 14x + 49 = 0 ∴ (x - 7)2 = 0 ∴ x = 7

x=7

7 squared = 49

x2-14x+49 (x-7)2 or (x-7)(x-7)

Yes because if x2-14x+49 then it is (x-7)(x-7) when factored

35

49 squared is equal to 2,401.The question may be trying to ask: "What whole number equals 49 when it is squared ?"In that case, the answer is 7.

49 x2 + 14x = -7 x2 + 14x + 49 = 42 (x + 7)2 = 42 x = -7 ± √42

49-apex

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