directions are:
write each fraction in simplest form:
(-15x^3y^3)/(-20x^1y^4)
My answeris: (3x^2)/(4y)
THESE TWO NEXT ONES ARE THE ONES THAT I DON'T UNDERSTAND:
pROBLEM #1
DIRECTIONS: Write each expression in simplest form.
(4x-28)/(5x-35)
Problem #2
directions:
Write each expression in simplest form.
(4r^2-25s^2)/(2r^2+3rs-20s^2)
Your first answer is correct.
The expression
(4x-28)/(5x-35)
can be written
(4/5)[(x-7)/(x-7)]
The (x-7) terms cancel out, leaving you with 4/5.
In the lsst expression, factor the numerator and deominator. The numerator is (2r - 5s)(2r + 5s)
The denominator factors into
(2r - 5s)(r + 4s)
Cancel out the common factors.
when solving x^2=16, why is the answer +/-4
1/7 1/3
When solving the equation x^2 = 16, we are trying to find the values of x that make the equation true. To do this, we can use the concept of square roots.
The square root of a number is the value that, when multiplied by itself, gives that number. For example, the square root of 9 is 3 because 3 * 3 = 9.
In the equation x^2 = 16, we can take the square root of both sides to find the possible values of x. The square root of 16 is 4, so we have:
x = ±4
The ± symbol represents both the positive and negative square root. So, x can be either 4 or -4 because both 4^2 and (-4)^2 equal 16.
Therefore, when solving x^2 = 16, the answer is x = ±4.