Question

find quadratic equation of x2-2x+5=0​

Answer 1

x² + 2x - 5 = 0

So, we have to find to it's zeroes by using completing Square method.

x² + 2x - 5 = 0

we can write 2x = 2(x)(1)

x² + (2)(x)(1) + [ 1² - 1²] - 5 = 0

(x + 1)² - 1 - 5 = 0

[(x² + 2x + 1) = (x + 1)² , where, (a² + b² + 2ac = (a + b)²]

so,

(x + 1)² = 6

[taking Square Root both side]

(x + 1) = ±√6

now there is two situation

( 1 ) we have to take (+ve) sign.

So, answeer will be.

(x + 1) = √6

x = (√6 - 1)

( 2 ) we have to take (+ve) sign.

So, answeer will be.

(x + 1) = -√6

x = -(√6 + 1)

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Answer 2

Answer:

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