( c - 18 )
An algebraic expression
4b - 2c is an expression, which is equal to 2(2b - c)
it should be minus 18* c
72/c where c= 4 is the same as 72/4 (which =18)
To simplify the expression ( 6(c^4)4c - 18 ), first multiply the coefficients: ( 6 \times 4 = 24 ). The expression then becomes ( 24c^5 - 18 ). This can be factored further as ( 6(4c^5 - 3) ).
The expression can be written as (2 + c)/2 - 6b.
You have to switch the sign of all terms within the parentheses. For example, -(a - b + c - d) becomes -a + b - c + d
The expression "a squared b squared minus c squared" can be mathematically represented as ( (ab)^2 - c^2 ). This can be factored using the difference of squares formula, which states that ( x^2 - y^2 = (x - y)(x + y) ). Thus, it can be factored as ( (ab - c)(ab + c) ).
"An expression of three terms" means that the expression has three parts, combined by plus or minus signs. Within each of these parts (terms), there can be a single number or variable, or a product or division involving several other pieces.
No -25 °C is colder than -18 °C
a - b = c -(a - b) = -c b - a = -c
If the temperature is 18 C and it falls to 25 C, the temperature would then be -25 C (minus 25 Celsius). The freezing point on the Celsius scale is 0°. So minus 25 Celsius would be very, very extremely cold!