Equivilant Expressions
- two expressions can be shown to be equivilant if one
simplify s to the other and they each have the same restrictions.
- two answers can be shown to not be equiv' lant if they evaluate to
diffrent answers for the same value of the variable.
example 1: example 2: example 3:
2b²-3b -7 & b(b- 8) -2 492-289+49 & (at-) (40-36)
is 3¥:&-(3×+1)
b. +4 b +4 a²-4 a- 2
b- 2 212-8) -2 (a-2) Cata)
✗ #I no restriction (1 + 2) (4 -36)
i. not equivilant 2 (2)2-312)-7 2+4
" 412-2811) +49 - -96
2 +4
- - 14
(1 -2) (1+2)
÷
6
25 = 96
i not equivilant - 3
i not equivilant
- two expressions can be shown to be equivilant if one
simplify s to the other and they each have the same restrictions.
- two answers can be shown to not be equiv' lant if they evaluate to
diffrent answers for the same value of the variable.
example 1: example 2: example 3:
2b²-3b -7 & b(b- 8) -2 492-289+49 & (at-) (40-36)
is 3¥:&-(3×+1)
b. +4 b +4 a²-4 a- 2
b- 2 212-8) -2 (a-2) Cata)
✗ #I no restriction (1 + 2) (4 -36)
i. not equivilant 2 (2)2-312)-7 2+4
" 412-2811) +49 - -96
2 +4
- - 14
(1 -2) (1+2)
÷
6
25 = 96
i not equivilant - 3
i not equivilant
