Question
Verification of algebraic identities geometrically?
(x+a)(x=b)=x2 +(a+b)x+ab.
(x+a)(x=b)=x2 +(a+b)x+ab.
Answers
bobpursley
draw a rectangle, sides x+a and side x+b
draw appropriate lines at each x mark (horizontally, and vertically), creating sub rectangels x^2, ax, bx, ab
Notice that the sum of the areas add to (x+a)(x+b)
draw appropriate lines at each x mark (horizontally, and vertically), creating sub rectangels x^2, ax, bx, ab
Notice that the sum of the areas add to (x+a)(x+b)