Answer:
Step-by-step explanation:
Use distributive property to simplify both sides.
Use the Golden Rule of Algebra: (<em>What</em><em> </em><em>we</em><em> </em><em>do</em><em> </em><em>to</em><em> </em><em>one</em><em> </em><em>side</em><em>,</em><em> </em><em>we</em><em> </em><em>must</em><em> </em><em>do</em><em> </em><em>to</em><em> </em><em>the</em><em> </em><em>other</em><em>)</em><em>.</em>
Answer:
Step-by-step explanation:
From the upper isosceles triangle,
The answer is: x=±√5y [Note: If and only if at the lower triangle is NOT isosceles]
Exterior angle to the isosceles triangle = 2(2x^2 – 2x) [because the exterior angle of a triangle is equal to the sum of two opposite interior angles]
Therefore, the exterior angle = 4x^2 – 4x
Also,
The exterior angle is equal to the sum of the two interior base angles of the lower triangle
Thus, 4x^2 – 4x=(3x^2+4x) + (5y – 8x)
By collecting like terms,
4x^2 – 3x^2 – 4x – 4x + 8x – 5y = 0
x^2 – 5y = 0
x^2 = 5y
By taking the square root of both sides
x=±√5y
Learn more about triangles at brainly.com/brainly.com/question/29069807
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Answer:
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Answer:
is this required answer
Step-by-step explanation:
AB=3x-2
=3*8-2
=22
