Answer:
Step-by-step explanation:
US is bisector, therefore
- 2x + 10 = 3x - 18
- 3x - 2x = 10 + 18
- x = 28°
∠BUL = 2(2x +10) = 4x + 20 = 4*28 + 20 = 132°
Answer:
x = 
Step-by-step explanation:
Given
x² =
( take the square root of both sides )
x =
=
= 
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2.) 7a^2 + 50a + 7 = 7a^2 + a + 49a + 7 = a(7a + 1) + 7(7a + 1) = (a + 7)(7a + 1)
3.) 3x^2 + 11x - 20 = 3x^2 - 4x + 15x - 20 = x(3x - 4) + 5(3x - 4) = (x + 5)(3x - 4)
4.) x^2 + 7x - 18 = x^2 - 2x + 9x - 18 = x(x - 2) + 9(x - 2) = (x + 9)(x - 2)