If the triangle's sides are given by
<span>2x-3
x-12
7x+1
Then all you have to do is to add them up, simplify your result and compare your result to each of:
</span><span>a. -10x + 14
b. 9x- 14
c. 10x +14
d. 10x - 14
Adding together the following, we get:
</span><span> 2x-3
x-12
7x+1
---------
10x -14</span>
The rules for multiplying and dividing decimals are;
Multiplying decimals:
- Multiply as usual, ignoring the decimals.
- Determine the total number of digits behind the original numbers' decimal points.
- Place the same number of digits behind the decimal point in the product.
Dividing Decimals:
-If the divisor is not a whole number, move decimal point to right to make it a whole number and move decimal point in dividend the same number of places.
- Divide as usual. ...
- Put decimal point directly above decimal point in the dividend.
- Check your answer
Answer:
24p^2q^2 - 42pq + 15
Step-by-step explanation:
Hi
Just told you : first know by heart remarkable identities !
Then apply :
4x²-12x = -9
4x²-12x +9 =0
(2x-3)² = 0
(2x-3) (2x-3) = 0
Now you have a double solution :
2x-3 = 0
and 2x -3 = 0
I let you try !
