Question
Simplify the expression
2t2−25
Evaluate
t2×2−25
Solution
2t2−25
Show Solution

Find the roots
t1=−252,t2=252
Alternative Form
t1≈−3.535534,t2≈3.535534
Evaluate
t2×2−25
To find the roots of the expression,set the expression equal to 0
t2×2−25=0
Use the commutative property to reorder the terms
2t2−25=0
Move the constant to the right-hand side and change its sign
2t2=0+25
Removing 0 doesn't change the value,so remove it from the expression
2t2=25
Divide both sides
22t2=225
Divide the numbers
t2=225
Take the root of both sides of the equation and remember to use both positive and negative roots
t=±225
Simplify the expression
More Steps

Evaluate
225
To take a root of a fraction,take the root of the numerator and denominator separately
225
Simplify the radical expression
More Steps

Evaluate
25
Write the number in exponential form with the base of 5
52
Reduce the index of the radical and exponent with 2
5
25
Multiply by the Conjugate
2×252
When a square root of an expression is multiplied by itself,the result is that expression
252
t=±252
Separate the equation into 2 possible cases
t=252t=−252
Solution
t1=−252,t2=252
Alternative Form
t1≈−3.535534,t2≈3.535534
Show Solution
