Answer:
2/3
Step-by-step explanation:
1 1/6 - 1/2
Get a common denominator of 6
1 1/6 - 1/2*3/3
1 1/6 - 3/6
Borrow 1 from the 1 in the form of 6/6
6/6 + 1/6 - 3/6
7/6 - 3/6
4/6
Reduce by dividing the top and bottom by 2
2/3
First put it in standard form:
<span>x^2 −14x -15 =0
a =1 b =-14 c=-15
Then use the quadratic formula:
x = [-b +-sq root (b^2 - 4ac)] / 2a
x = [--14 +- sq root (14^2 -4*1*-15] / 2*1
x = [14 +-sq root (196 +60)] / 2
</span><span>x = [14 +- 16] / 2
x1 = 15
x2 = -1
</span>
Answer:
the awencer is 4.2
Step-by-step explanation:
Answer:
if you want to factorise it answer will be : (x+y)^2 - 4^2
and if you have to expand it anwer will be x^2 + y^2 + 2xy -16
