catterine
catterine
13-02-2017
Mathematics
contestada
Find the product of (2a -7 )(a -4)
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boomitstaylorr
boomitstaylorr
13-02-2017
(2s-7)(a-4)
2a^2 -2a -7a-11
2a^2 -9a-11 <- ??
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SuperExtra0418
SuperExtra0418
13-02-2017
2a * a + 2a * -4 - 7 * a - 7 * -4 Use the FOIL method
2a^2 - 8a - 7a + 28 Combine like terms
2a^2 - 15a + 28
Hope this helps
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