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Mathematics
Javion Owens
16 April, 00:40
Simplify the expression: r3 x 5r2 x 2r4
+5
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Grace Tanner
16 April, 01:01
0
10r^9
Step-by-step explanation:
From one of the laws of indices:
(A²) ² = A ²+² = A⁴
So then, let's apply the knowledge to solve our questions.
r³ * 5r² * 2r⁴
Let's take it one after the other
= (r³ * 5r²) = 5r^5
= (r * r * r * 5 * r * r)
= (5r ^5.) (2r⁴)
= (5*2) (r^5 * r^4)
= 10 r ^9
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Audrey Paul
16 April, 03:02
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10r^9 is your answer. r^3x5r^2 = 5r^5. Take that and multiply it by 2r^4 and you get 10r^9
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