Answer:
6
Step-by-step explanation:
I used a calculator and the answer is 6
4x^2+16x+14=0
I just transfered the given equation to the other side..that must be in a standard form where ax^2+bx+c=0
5x+4y=8
-5x from both sides, you get 4y=-5x+8
then you divide the equation by 4.
y=-5/4x+2
10x-4y=46
-10x from both sides and you get -4y=-10x+46
divide the whole equation by -4 and you get y=5/2x + -23/2 .
source: MathPapa
<span> n = 135, is that what you wanted?</span>
X² - 9 = 55
+ 9
x² = 64
√
x = ± 8
So your answer would be x = 8 or x = -8
I hope this helps!
