Mathematics for IGCSE & O level - Equations (Section 5 - No. 47)
What is the first step when solving quadratic equations of the form x² + bx + c = 0 by factorization?
Rearrange the equation to have all terms on one side.
Find two numbers that multiply to give 'c' and add to give 'b'.
Factor out the greatest common factor.
Use the quadratic formula.
Giải thích
The first step is to rearrange the equation into a standard form.