3 years ago

What is a square root? and what is a perfect square? DO NOT USE GOOGLE TO ANSWER.

1 answer:

7 0

A square root is the little 2 at the top of a number so when you square a number it means you are multiplying how many is squared of that same number. And a perfect square is when you have a certain square that is given with how much their is in that square and then you use a radicand for that number equals how many that was square rooted so lets say the given square is 81 then ur perfect square would be 9^2.

Hope this helped!!

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3 years ago

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Read 2 more answers

Solve -x^2 + 4x +10 = 0 by using the "Solving the square method"

Pavel [41]

Answer:

$x = - 2 + \sqrt{14} \: \: or \: \: x = - 2 - \sqrt{14}$

Step-by-step explanation:

${x}^{2} - 4x - 10 = 0 \\ {x}^{2} - 4x = 10 \\ {x}^{2} - 2(2x) = 10 \\ {x }^{2} - 2(2x) + 4 = 10 + 4 \\ {(x + 2)}^{2} = 14 \\ x + 2 = \sqrt{14} \: \: \: \: or \: \: \: x + 2 = - \sqrt{14}$