simplify the following
(2x+3y+5) (2x+3y-5)
Answers
Answered by
0
Answer:
what is the sign between the two two brackets numbers?
Answered by
1
Answer:
4x²+9y²+12xy - 25
Step-by-step explanation:
(2x+3y+5) (2x+3y-5)
= (2x+3y)² -5²
= 4x²+9y²+2(2x)(3y) - 25
= 4x²+9y²+12xy - 25
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