b.l.m
Simplify the product using the rules for exponents: 19^3 × 19^4
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a^m * a^n = a^(m+n)
b.l.m
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i dont get it
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here a =19 m =3 n = 4
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just subs in the equation
b.l.m
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Select one of the options below as your answer:
A.
19 × 7
B.
1912
C.
19−1
D.
197
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it is 19^7
AnimalAin
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Ignore Shane_B in the first post. Yahoo! has this one covered.
b.l.m
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haha ok
Shane_B
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I typoed...my bad.
jesusisrisen
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No both are wrong the correct answer is 19(3*4)
Shane_B
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No :)
Shane_B
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It should be 19^7...you only multiply the exponents if you're raising an exponent to another exponent.
Shane_B
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@blm: Maybe this explanation will be better. The rule is:\[\large a^x*a^y=a^{x+y}\]Which can be easily proven with an example: \[a^2*a^3=a^5=a*a*a*a*a\]