How do you factor: x^2-4x+2xy-8y?
1 answer:
Factor out the greatest common factor from each group.
Group the first two terms and the last two terms.
(−4x)+2xy−8y
Factor out the greatest common factor (GCF) from each group.
x(x−4)+2y(x−4)
Factor the polynomial by factoring out the greatest common factor, x−4.
(x−4)(x+2y)
I believe this is correct. Good luck.
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Simplify the radical by breaking up the radicand into a product of known factors.
A) 95.8 % of £36 will be the new price
B) The answer to part A as a decimal is £34.488
C) The new price is £34.488
<h3><u>Solution:</u></h3>Given that the price of a pedicure decreases by 4.2% from £36 on promotion
<em><u>A) What percentage of £36 will the new price be ?</u></em>
Given that £36 is decreased by 4.2 %
New price = 36 – 4.2% of 36
Now we have to find what percentage of £36 will the new price be
x % of 36 = 34.488
<em><u>B) Write your answer to part a as a decimal.</u></em>
Now, we have to find the new price in decimal form.
<em><u>C) Work out the new price.</u></em>
As we calculated, the new price is £34.488