Topic Content:
- Evaluating Formula
One of the most important applications of algebraAlgebra is a branch of mathematics that substitutes letters for numbers. Algebra is about finding the unknown or putting real-life variables into equations and then solving them. More is in the use of formula.
A formula is simply an equation which describes the relationship between two or more quantities.
Let A = \(\frac{1}{2} \scriptsize (a + b )h\! \!\), where “a” and “b” are the parallel sides and “h” is the perpendicular distance between the parallel sides.
In this case, A is said to be the subject of the formula.
Example 4.5.1:
Evaluate \( \frac{ax^2\:+ \:bx \:+\:c}{mx \:+\: c} \)
given that a = 2, x = -3, b = -2, c = 4 and m = -1 (WAEC)
Solution:
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