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

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-x2+14x=49

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

35

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)

63

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

(x + 7)(x + 7)

(x - 7)(x - 7)

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

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

7 is a factor of 49.

49-apex

(x2 + 14x + 49) = (x + 7)2

Notice that the left side of the equation is a perfect square (x - 7)2 = x2 -14x + 49. so (x - 7)2 = 4. Take square root of both sides: x - 7 = Â± 2, x = 9, or x = 5.

7 squared and 11 squared have no common factor greater than 1.

The number 7 raised to the 2nd power (or squared) equals 49.

The factor is 7. The product is 49.

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

7

It is: 7 times 7 = 49

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