The product of ( 2x²–9)( 2x²+19) is
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(2x²-9)(2x²+19)
put the value in a²+b²
(2x)²-(9)²
4x²-81.
please follow it.
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Answer:
(2×7) (2×21)
14×42
588
Step-by-step explanation:
hop it's help
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