Question

asked Nov 20, 2022 233k views

1 Answer

Jason L · Answer 1 · 2022-11-24T06:29:41+0000

Answer:

3.

a=-1

a=-2

5.

n=-6

n=-3

8.

n=-5

n=-3

Explanation:

3. separate into probable cases

$a + 2 = 0\\ a + 1 = 0$

5.

${n}^(2) + 6n - 3n - 18 = 0 \\$

factor out n from the expression

factor out -3 from the expression

n * (n + 6) - 3(n + 6) = 0

factor out n+6 from the equation

(n + 6) * (n - 3) = 0

separate into probable cases

$n + 6 = 0\\ n - 3 = 0$

solve the equations

$n = - 6 \\ n = 3$

8.

n ^(2) + 5n + 3n + 15 = 0

factor out n and 3 from the expression

n * (n + 5) + 3(n + 5) = 0

factor out n+5

(n + 5) * (n + 3) = 0

separate into probable cases

$n + 5 = 0 \\ n + 3 = 0$

solve the equations

$n = - 3 \\ n = - 3$

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