20k + 50
so remember factorise means to add brackets in.this will be a single bracket so we need a number / letter that will go outside the bracket.in this case it will be a number because 50 dosent have a letter only 20 has a letter which is k. you need to put the highest number that goes into both numbers on the outside of the bracket which is 10.
20k + 50
=10(2k + 5)
to check if it's right we simplify it out using a fraud method or whoever method your comfortable with.
10(2k+5)
10*2k=20k
10*5=50
=20+50k
so it is factorised correctly.
answer is 10(2k+5)
The answer is not correct
Y = -3/8x - 7....add 3/8x from both sides
3/8x + y = -7 ...multiply both sides by 8
3x + 8y = - 56 <==
4+4v = 3v +4
------- = -----------
-3 2
use cross products
(4+4v) *2 = -3*(3v+4)
distribute
8+8v = -9v-12
add 9v to each side
8+17v = -12
subtract 8 from each side
17v = -20
divide by 17
v = -20/17
Equation = (y - 6)/(x - 4) = (5 - 6)/(1 - 4) => (y - 6)/(x - 4) = -1/-3 => 3(y - 6) = x - 4 => 3y - 18 = x - 4 => x - 3y = 14
