To factor an expression of the form:
we find two numbers B and C that fulfills the following properties:
In this case we have b=-4 and c=-12. We can choose B=-6 and C=2. Then we write the expression as:
and we factor the common factors in the first two and last terms:
Therefore:
Answer:
square root is 13
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
5x4=20
5x-1=-5
20-5=15
Answer:
y = -3/2x + 2
Step-by-step explanation:
Since you know it has a point at (0, 2) - the y intercept, put those values into the equation and solve. To be perpendicular it seems the reciprocal of the slope with the opposite sign, so 2/3 is the original slope, and -3/2 becomes the new slope.
y = 2/3x + 8 becomes
2 = -3/2(0) + b We substitute in the x and y values, but we have to figure out what the last number will be.
2 = 0 + b
b = 2
So put the whole equation together
y = -3/2x + 2
it is called ones period system .this is based on international system of numeration.
