(3x+4)(3x - 5)
use identity
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(3x+4)(3x-5)
=> 3x(3x) - 3x(5) + 4(3x) - 4(5)
=> 9x² - 15x + 12x - 20
=> 9x² - 3x - 20
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Answered by
1
Answer:
3x(3x-5)+4(3x-5)
Step-by-step explanation:
9x-15x+12x-20
9x - 3x-20
6x-20 is ans I think
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