Answer:
No, middle term should be 40x.
Step-by-step explanation:
![16 {x}^{2} - 2 \times 4x \times 5 + {25}^{2} \\ = {(4x)}^{2} - 40x + {5}^{2} \\ = (4x - 5)^{2} \\](https://tex.z-dn.net/?f=16%20%7Bx%7D%5E%7B2%7D%20%20-%202%20%5Ctimes%204x%20%5Ctimes%205%20%2B%20%20%7B25%7D%5E%7B2%7D%20%20%5C%5C%20%20%20%3D%20%20%7B%284x%29%7D%5E%7B2%7D%20%20-%2040x%20%2B%20%20%7B5%7D%5E%7B2%7D%20%20%5C%5C%20%20%3D%20%284x%20-%205%29%5E%7B2%7D%20%20%5C%5C%20)
Hence, for the given trinomial to be a perfect square its middle term should be 40x and not 36x.
I think its the Associative property
Make it in exactly five steps.
Hope this helps.
What do you need to figure out. i am happy to help
<span>Since the opposite angles are supplementary, an isosceles trapezium is a cyclic quadrilateral. Thus, ABCD is a rectangle as each internal angle is 90°. 8. If the non-parallel sides of a trapezium are equal, prove that it is cyclic.
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