For each initial-value problem given below, three choices for a possible solution y = y(x) are given. determine whether each choice is or is not a solution to the given initial-value problem. = dx i ii. y(x) = 24x + 1 a..= 4y i. y(x) = €4x b. x y = 2y i. y(x) = x2 with y(o) = 5 ii. y(x) = 5e4x with y(2) = 20 ii. y(x) = 10x iii. y(x) = 5x2 n. 2 19) on
c.- 9y = 0 with y(0) = 1 and y'(o) = 9 i. y(x) = 2e3x – 2-3x ii. y(x) = 237 iii. y(x) = 23x +1. @242 - 4x + 6y = 36x6 with y(1) = 1 and y'(1) = 12 i. y(x) = 10r3 - 9x2 ii. y(x) = 3x - 2x2 ü. y(x) = 3x6 – 2x3 1.5. for the following, let dr.

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation: