Answer:
40t⁶
Step-by-step explanation:
Since -4t⁵ and -10t have the same variable (base), we can multiply their coefficients (numbers) and add their exponents
-4t⁵ * -10t = 40t⁶
Since both numbers are negative, when we multiply them, they cancel out.
SInce both variables are the same (both are t), we can just add their exponents together. Even though we don't see an exponent above -10t, we can assume that it is 1. Think of it as this, -10t = -10t¹ because it just represents -10t, -10t (specifically the t) isn't being multiplied by anything.
The largest number that divides 63, 84, and 105 evenly is 21.
David can put 21 of each kind of tile in a row.
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These numbers are 3*21, 4*21, and 5*21, respectively.
