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Earn +20 ptsQ: What is the square rootof xsquared plus 2 xy plus y squared?
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What is 2x squared plus 24 equal zero?
so x squared + 12 = 0 so xsquared = -12 which lands you in the realm of imaginary numbers. The square root of -12 is 2i root 3 where i is the imaginary sqrt of -1.
How do you get 81-18x plus xsquared from (9-x)squared?
Because: (9-x)(9-x) = 81-18x+x^2
What does the equation x squared plus y squared represent?
x2 + y2 isn't an equation. Until you say it's equal to something, it's just anexpression, and its numerical value depends on the values of 'x' and 'y'.If you say that the expression is equal to some number, the it's the equationof a circle, with its center at the origin, and a radius equal to the square rootof the number.
What is Xsquared plus 5x plus 4 factorised?
(x + 4)(x + 1)
What does the pythagorean theorem tell you?
In a right angle triangle the square of the hypotenuse is equal to height squared plus base squared
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