Simplify : (1.5a - 4b) (1.5a + 4b + 3) - 4.5a + 12b
Answers
Answered by
3
Answer:
Step-by-step explanation:
(1.5a - 4b) (1.5a + 4b + 3) - 4.5a + 12b
= 2.25a^2 +6ab+4.5a-6ab-16b^2-12b-4.5a+12b
= 2.25a^2 - 16b^2
Answered by
0
Answer:
-4.5a -16b - 9/2
Step-by-step explanation:
9/4 a + 12/2 ab +9/2 -6ab -16 b - 12b -9/2a + 12b
9/4a - 9/2 - 9/2a -16b
-9/4a - 16b - 9/2
-2.25a - 16b - 4.5
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