A) Factorise 2x² - 9x - 5 (x-5)(2x+1) (2) b) Hence, simplify fully 2x^2- 9x - 5 3x – 15x (2)
1 answer:
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Answer:
when
.
Step-by-step explanation:
Given:
To find: Value of , substituting the known value of
We have,
Putting in equation
, we get
Hence, the value of is
, when the value of
is
.
You just need to use your test-taking skill to eliminate the wrong answers here.
There is no such thing as a "Congruent Angles Postulate," so the last two choices can be eliminated.
The AA Similarity Postulate refers to triangles, not angles, so the second choice can be eliminated.
That only leaves the (correct) first choice.
