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m_a_m_a [10]
3 years ago
8

X+4 is prime. X2-9can be factored using the __formula

Mathematics
1 answer:
svet-max [94.6K]3 years ago
3 0

\purple \bold{a^2 - b^2}

Step-by-step explanation:

X+4 is prime. X2-9can be factored using the \purple \bold{a^2 - b^2} formula

x^2 - 9\\=x^2 - 3^2 \\= (x+3)(x-3)

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