Factor each completely.1) x7x 18
2 answers:
Use the cross-method.
1. Draw a cross.
2. Put x^2 to the first column.
( You can put any x^2 values for other similar factorisation question. eg. 5x^2 )
3. Put numbers on the 2nd column.
4. For the last column, it must be a number with an x.
5. Make sure that all the numbers and algebra that you multiplied gives the product with the ones at the bottom row.
6. Cross multiply.
7. Take 1st row and bracket them and do the same for 2nd row.
Answer:
x^2 - 7x - 18
= ( x+2 )( x - 9 )
1. Draw a cross.
2. Put x^2 to the first column.
( You can put any x^2 values for other similar factorisation question. eg. 5x^2 )
3. Put numbers on the 2nd column.
4. For the last column, it must be a number with an x.
5. Make sure that all the numbers and algebra that you multiplied gives the product with the ones at the bottom row.
6. Cross multiply.
7. Take 1st row and bracket them and do the same for 2nd row.
Answer:
x^2 - 7x - 18
= ( x+2 )( x - 9 )
You might be interested in
A probability of 0.075 corresponds to a z-score of about 
, i.e.
Answer:
<h2>4.5</h2>Step-by-step explanation:
Move constant to R.H.S and change its sign
Subtract the numbers
Divide both sides of the equation by 2
Calculate
Hope this helps..
Best regards!!