4n + 3 = 19Subtract 3 from each side:4n = 16Divide each side by 4:n = 4
4n-3=5 add 3 both sides 4n=8 divide by 4 both sides n=2
4n+13=1 -13 -134n=-12/4 /4n=-3
4n + 9 = -3 Now, we take away 9 from both sides 4n = -12 Now divide by 4 n = -3
n3 + 3n2 + 4n + 12 = (n3 + 3n2) + (4n + 12) = n2(n + 3) + 4(n + 3) = (n2 + 4)(n + 3).
4n + 3 = 15 4n +3 - 3 = 15 - 3 4n = 12 4n/4 = 12/4 n = 3
4n + 3 = 19Subtract 3 from each side:4n = 16Divide each side by 4:n = 4
4n-3=5 add 3 both sides 4n=8 divide by 4 both sides n=2
4n+13=1 -13 -134n=-12/4 /4n=-3
Yes. Multiplying out the brackets on the second one: 4(n + 3) = 4×n + 4×3 = 4n + 12.
4n + 9 = -3 Now, we take away 9 from both sides 4n = -12 Now divide by 4 n = -3
The nth term IS 4n + 3 ie 4 times n and then add 3.
n3 + 3n2 + 4n + 12 = (n3 + 3n2) + (4n + 12) = n2(n + 3) + 4(n + 3) = (n2 + 4)(n + 3).
8+4n=-4 algebra gives us 4n=-12 n=-3
4n+3 = 15 15 - 3 = 12 4n = 12 12 / 4 = 3 (3 X 4) + 3 = 15
4 + 4n - 12 = 4n - 8
4n = 3n + 44n - 3n = 3n - 3n + 4n = 4check:4n = 3n + 44(4) =? 3(4) + 416 =? 12 + 416 = 16 True