(2a + 3)2 – (20 - 3)2
Answers
Answered by
1
Step-by-step explanation:
(2a+3)2-(20-3)2=0
4a+6-(17)2=0
4a+6-34=0
4a-28=0
4a=28
a=28/4
a=7
Answered by
0
Answer:
a=7
Step-by-step explanation:
(2a+3)2-(20-3)2=0
4a+6-(17)2=0
4a+6-34=0
4a-28=0
4a=28
a=28/4
a=7
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