About how many pages.....estimate : 70 + 80 = 150
actual : 72 + 83 = 70 + 80 + 5 = 155
For quadratics, these formulas are used mainly for factoring.
Your equation can be written as ...
... 2(x² +2x -3) = 0
You factor this by looking for factors of -3 (c=x1·x2) that add to give +2 (b=-(x1+x2)). These are {-1, +3}, so the factorization is ...
... 2(x -1)(x +3) = 0
The roots are then 1 and -3, which sum to -b = -2.
(You will note that the numbers used in the binomial factors are the opposites of the roots x1 and x2 in the Viete's Formulas. That is how we can look for them to sum to "b", rather than "-b".)
Answer: V = slope or gradient of the equation
Step-by-step explanation:
y = VX + 4
From equation of a straight line
y = mx + c
where m is the gradient or slope
Therefore
V= slope or gradient of the equation
3y
---- -2 =9
4
3y
---- = 11
4
3y = 44
y = 44/3
hope helped
Can you say how many cm are in a meter
