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marshall27 [118]
3 years ago
11

Use polynomial identities to multiply (5-4x3)(5+4x3)

Mathematics
1 answer:
galina1969 [7]3 years ago
5 0

Answer:

-119

Step-by-step explanation:

(5-4x3)(5+4x3)

=> 5² - (4x3)²                        [Identity: (a+b)(a-b) = a² - b²]

=> 25 - 12²

=> 25 - 144

=> -119

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