Tamara says she used the GCF to factor the expression 21x + 56xy as 7(3x + 8xy). Is she correct?
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9
Answer:
Mark in bold all common factors, then GCF(21x,56xy)=7·x=7x. Thus, 21x+56xy=7x(3+8y). Hence, Tamara correctly found the GCF of numbers 21 and 56, but incorrectly factored the whole expression .
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Answered by
3
Answer:
Yes
Step-by-step explanation:
Yes; 7 is the GCE.
No; 14 is the GCF
No; 7x is the GCF.
No; 7xy is the GCF
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