Question

how to find the value of x in √28=2× x​

Answer 1

Answer:

$\sqrt{28} = 2x \\ 2 \sqrt{7} = 2x \\ x = \sqrt{7} \\ thanks \:$

Answer 2

Answer:

Factoring x2-x-28

The first term is, x2 its coefficient is 1 .

The middle term is, -x its coefficient is -1 .

The last term, "the constant", is -28

Step-1 : Multiply the coefficient of the first term by the constant 1 • -28 = -28

Step-2 : Find two factors of -28 whose sum equals the coefficient of the middle term, which is -1 .

-28 + 1 = -27

-14 + 2 = -12

-7 + 4 = -3

-4 + 7 = 3

-2 + 14 = 12

-1 + 28 = 27

Step-by-step explanation:

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