The expressions which are equivalent to 16a + 72 are 2(8a + 36) and 4(4a + 18)
16a + 72
= 4(4a + 18)
Also
16a + 72
= 2(8a + 36)
The equivalent expressions to 16a + 72 are 2(8a + 36) and 4(4a + 18)
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