The product of a+3 and -2a^2+15a+6 is -2a^3+xa^2+51a+18. what is the value of x? is it 8 ,9,12 or15?

x = 9 ⇒ second answer

Step-by-step explanation:

∵ (a + 3)(-2a² + 15a + 6) =

  -2a³ + 15a² + 6a - 6a² + 45a + 18 =

  -2a³ + 9a² + 51a + 18

∵ (a + 3)(-2a² + 15a + 6) = -2a³ + xa² + 51a + 18

∴ -2a³ + 9a² + 51a + 18 = -2a³ + xa² + 51a + 18

∴ x = 9

answer: the answer is one of

step-by-step explanation:   we are given to write a proper fraction where the whole is divided into an even number of equal parts less than ten, and an odd number of those parts exist.

an even number less than 10 may be one of 2, 4, 6 or 8. so, the whole may be one of these four evens.

now, an odd number of these parts must exist, so the numerator must be an odd number, one of 1, 3, 5 or 7. it cannot be 9 because then the fraction will become improper.

thus, our fraction may be one of the following

the cat is blue because the probability of extension towards the prefix of the diameter of the circle could only mathematically equal to the sum of the roots of the carrots from   your garden.

step-by-step explanation: