Simplify (10 - 11):
10. (3x + 5)2 – (3x - 5)2
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Answered by
0
(3x+5)^2-(3x-5)^2
=(9x^2+36x+25)-(9x^2-36x+25)
=9x^2+36x+25-9x^2+36x-25
=72x
x=1/72
Answered by
2
Answer:
60x
Step-by-step explanation:
(3x + 5)^2 – (3x - 5)^2
=> 9x^2 + 30x + 25 - ( 9x^2 - 30x + 25)
=> 9x^2 + 30x + 25 - 9x^2 + 30x - 25
=> 9x^2 - 9x^2 + 30x + 30x +25 -25
=> 60x
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