Answer:
x = ±i8/7
Step-by-step explanation:
49x^2 +64 = 0
Subtract 64 from each side
49x^2 +64-64 = 0-64
49x^2 = -64
Divide by 49
49x^2/49 =-64 /49
x^2 = - 64/ 49
Take the square root of each side
sqrt(x^2) = ±sqrt(- 64/ 49)
x = ±sqrt(- 64/ 49)
We know sqrt( ab/c) = sqrt(a) sqrt(b)/sqrt(c)
x = ±sqrt(- 1) sqrt(64)/( 49)
We know that the sqrt(-1) = i
x = ±i8/7
1. 58,072
2. 16,926
Hope this helps you!
Answer:
Is this a trick question?
Step-by-step explanation:
To Simplify Fractions what you have to do is get the number then see what can divide into both the numerator and denominator equally Here:
1.5/8 Nothing can go into both so you leave it.
2. 3/5 + 1/4 = 4/9 Still nothing can go into it.
3. 4/7 + 1/8 = 5/15 you can divide, 5 can go into 5 , 1 time , 5 can go into 15 3 times the answer is 1/3
press buttons.
Step-by-step explanation:
press the desired buttons.