Answer:
x = 5
Step-by-step explanation:
Too long to explain on phone
Answer:
50°
Step-by-step explanation:
The missing angle is an exterior angle
The formula says, that the sum of the two apposite adjacent angles inside the triangle equals two the exterior angle.
So 30° + 20° = 50°
The missing angle is 50°
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-Chetan K
4x^4 - 20x^2 - 3x^2 + 15
= (4x^2)(x^2) + (4x^2)(-5) + (-3)(x^2) + (-5)(-3)
= (4x^2)(x^2 - 5) + (-3)(x^2 - 5)
= (4x^2 - 3)(x^2 - 5)
Therefore the answer is (4x^2 - 3)(x^2 - 5)