Answer:
(3 - x)(3 + x)(2x + 1)
Step-by-step explanation:
18x - 2x³ + 9 - x² ( factor the first/second and third/fourth terms )
= 2x(9 - x²) + 1 (9 - x²) ← factor out (9 - x²) from each term
= (9 - x²(2x + 1) ← 9 - x² is a difference of squares a² - b² = (a - b)(a + b) )
= (3² - x²)(2x + 1)
= (3 - x)(3 + x)(2x + 1)
Answer:
option 2, 4, and 5 are correct.
Step-by-step explanation:
180 - (20+30) = 180 - 50 = 130
Obtuse triangle is a triangle that has one angle that is more than 90 degrees and all the sides have different lengths since all the angles are different.
54.49, 54.48, 54.47.
If the number after the tenth is 5 or above, that number changes to 0 and disappears, and it makes the tenth one bigger number.
Answer:
760 miles per hour
Step-by-step explanation:
380x2
Answer C (-8,0)
because the line crosses the x-intercept (the horizontal line)