Answer:
=x^2 -14xy+49y^2
Step-by-step explanation:
(x − 7y)^2
= (x-7y)(x-7y)
= x^2 -7xy-7xy+49y^2
=x^2 -14xy+49y^2
Firstly, we will draw figure
now, we will draw a altitude from B to DC that divides trapezium into rectangle and right triangle
because of opposite sides of rectangle ABMD are congruent
so,
DM=AB=9
CM=CD-DM
CM=18-9
CM=9
now, we can find BM by using Pythagoras theorem
now, we can plug values
we get
now, we can find area of trapezium
now, we can plug values
and we get
so, area of of the trapezoid is ..........Answer
Answer:
x = -3
Step-by-step explanation:
You have the following equation:
you first you distribution property in order to eliminate the parenthesis:
next, you subtract 12 in both sides of the equation:
Finally, you divide the equation by 6 and simplify:
hence, the solution to the equation is x = -3
I believe that the first 9 (90) is 100 times greater than the second 9 (9000). If you multiply 90 by 10, it will get 900, which is not enough!