Answer:
{x = -1 + √13 , x = -1 - √13}
Step-by-step explanation:
<u><em>Completing the square</em></u>:
f(x) = x² + 2x - 12
= x² + 2x + 1 - 1 - 12
= (x² + 2x + 1) - 1 - 12
= (x + 1)² - 13
<u><em>Solving</em></u>:
f(x) = 0
⇔ (x + 1)² - 13 = 0
⇔ (x + 1)² = 13
⇔ x + 1 = √13 or x + 1 = -√13
⇔ x = -1 + √13 or x = -1 - √13
Answer:
ok let me help you what is the question
Step-by-step explanation:
Hey there!
7 * 6 / (13-10) + 4
= 42 / 3 + 4
= 42/3 + 4/1
= 14 + 4
= 14 + 4
= 18
Therefore, your answer is: 18
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
Answer:
equilateral x=20
Step-by-step explanation:
3x=60
/3 /3
x=20
all angles of equilateral triangles equals 60
