Algebra Flashcards

(10 cards)

1
Q

Quadratic equation

A

(-b +/- sqrt(b^2-4ac))/2a

For ax^2+bx+c

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2
Q

x^r * x^s

A

X^(r+s)

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3
Q

x^r * y^r

A

(xy)^r

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4
Q

(x^r)/(x^s)

A

x^(r-s)

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5
Q

(x/y)^r

A

(X^r)/(y^r)

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6
Q

(X^r)^s

A

X^rs = (X^s)^r

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7
Q

X^-r

A

1/(x^r)

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8
Q

X^(r/s)

A

s-root(X^r)

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9
Q

What do you do when you divide across an inequality with a negative number

A

Switch the sign

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10
Q

What must a perfect square have?

A

An even number of prime factors

3150 x 14 = 2x2x3x3x5x5x7x7

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