2x^2+8xy+8y^2
2(x^2+4xy+4y^2)
The area is given by
A = (5 + 2x) * (10 + 2x) - 50
Rewriting we have:
A = 50 + 10x + 20x + 4x ^ 2 -50
Rewriting we have:
A = 4x ^ 2 + 30x
Substituting the value of the area we have:
54 = 4x ^ 2 + 30x
Rewriting:
4x ^ 2 + 30x - 54 = 0
We look for the roots:
x1 = -9
x2 = 3/2
We take the positive root:
x2 = 3/2
Answer:
the value of x is:
x = 3/2
Answer:
x = -3
y = 4
Step-by-step explanation:
7x + 2y = -13
-7x + y = 25
3y = 12
-7x + y = 25
y = 4
-7x + 4 = 25
y = 4
-7x = 21
y = 4
x = -3
there is only 1 solution for this equation is (-3,4)
Step-by-step explanation:
If np is attitude
5x^2+10=90
5x^2=80
x^2=16
X=+-4
angle npo=90 degeees
