Page 80 - Mathematics

Example 5.4

Divide 4ax + 6ay –10 by 2 .az a

Solution
4ax + 6ay − 10az
(4ax + 6ay − 10az ) 2a÷ =
2a
4ax 6ay 10az
= + −
2a 2a 2a
Tanzania Institute of Education
= 2x + 3y − 5z
Therefore, 4ax + 6ay − 10az divided by 2a is 2x + 3y − 5 .z

Example 5.5

Simplify each of the following algebraic expressions.

1 1
(a) (8b + 12bb− ) (b) (15g + 5g )
4 5

Solution
1 1
(a) (8b + 12bb− ) = (19 )b
4 4
19b
=
4
1
Therefore, (8b + 12bb− ) = 19b .
4 4

(b) 1 (15g + 1 (20 )g
5 )g =
5
5
Mathematics Form One = 4g

20g
5
=

1
Therefore, (15g +
) 4 .g=
5g
5

74

25/10/2024 09:51:22
Mathematics form 1.indd 74
Mathematics form 1.indd 74 25/10/2024 09:51:22