Câu hỏi
Find the roots
x1=−35,x2=35
Alternative Form
x1≈−0.745356,x2≈0.745356
Evaluate
9x2−5
To find the roots of the expression,set the expression equal to 0
9x2−5=0
Move the constant to the right-hand side and change its sign
9x2=0+5
Removing 0 doesn't change the value,so remove it from the expression
9x2=5
Divide both sides
99x2=95
Divide the numbers
x2=95
Take the root of both sides of the equation and remember to use both positive and negative roots
x=±95
Simplify the expression
Thêm Bước
Evaluate
95
To take a root of a fraction,take the root of the numerator and denominator separately
95
Simplify the radical expression
Thêm Bước
Evaluate
9
Write the number in exponential form with the base of 3
32
Reduce the index of the radical and exponent with 2
3
35
x=±35
Separate the equation into 2 possible cases
x=35x=−35
Giải pháp
x1=−35,x2=35
Alternative Form
x1≈−0.745356,x2≈0.745356
Hiển thị giải pháp