In what ways are products of fractions similar to products of integers?

Mathematics

1 answer:

zhannawk [14.2K]3 years ago

3 0

Answer:

Step-by-step explanation:

Products of fractions can be similar to products of integers because the product of the fraction can cancel out or simplify to an integer. For example:

1/2 x 2/1

Any number multiplied by its reciprocal is equal to 1.

The same rules for multiplying positive and negative integers still applies to multiplying positive and negative fractions.

Hope this helps!! :)

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98-x2=0 solve this with the quadratic formula

Mars2501 [29]

Answer:

x∈{-7√2, 7√2}

Step-by-step explanation:

$98-x^2=0\\\\-x^2+98=0\\\\a=-1\,,\ \ b=0\,,\ \ c=98\\\\x_1=\dfrac{-0-\sqrt{0^2-4\cdot(-1)\cdot98}}{2\cdot(-1)}=\dfrac{-\sqrt{4\cdot49\cdot2}}{-2}=\dfrac{-2\cdot7\sqrt{2}}{-2}=7\sqrt2\\\\x_2=\dfrac{-0+\sqrt{0^2-4\cdot(-1)\cdot98}}{2\cdot(-1)}=\dfrac{2\cdot7\sqrt{2}}{-2}=-7\sqrt2$