Simplifying Expressions |
To algebraically simplify an expression, select the entire expression and either:
- or -
Then press [Enter].
The simplify command simplifies expressions using algebraic, trigonometric, and exponential function identities, and simplifies square roots and powers.
(x−3)2 + 4x2 − 2x + 1 simplify → 5 · x2 − 8 · x + 10
x2 + 7x +10 simplify → (x + 2) · (x + 5)
(a + b) · (a − b) simplify → a2 − b2
sin(x)2 + cos(x)2 simplify → 1
2sin(x) · cos(x) simplify → sin(2 · x)
e2x · e5y simplify → e2·x+5·y
To simplify expressions involving general exponentials or logarithms, use the keyword "combine." For example,
5x · 5y combine → 5(x+y)
ln(2) + ln(3) combine, ln → ln(6)
When the expression to be simplified includes functions with more than one branch, such as square root or the inverse trigonometric functions, Mathcad may return a result that differs in numerical behavior from the original.