Given:
y = 2x
z = 5y
First find z in terms of x:
z = 5y = 5 _ (2x) = 10x
Now substitute in x + 3y + z:
x + 3y + z = x + 3_(2x) + 10x
= x + 6x + 10x
= 17x
Last verified on 05-08-2026
Solve:
Subtract 5 from both sides:
Divide by 2:
Use the formula: (a + b)(a − b) = a² − b²
Here, a = 3x and b = 2
= (3x)² − (2)²
= 9x² − 4
For the point (a,−a):
x=a,y=−a
Therefore:
y=−x
Last updated 27-07-2026 by NA
Write the terms as:
Using the formula:
For n=10:
Last updated 27-07-2026 by NA
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