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Lyons
Mathematics
13 August, 03:49
What is the value of 7x (3x+x) when x is 8
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Wayne Fleming
13 August, 03:56
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The correct answer is,
he value of expression 7x (3x+x) when x is 8 = 1792
Step-by-step explanation:
It is given expression is,
7x (3x+x)
Simplify 7x (3x+x)
7x (3x+x) = 7x (4x)
= 28x²
To find the value of 7x (3x+x) when x = 8
7x (3x+x) = 28x²
x = 8
28x² = 28 * 8² = 28*64 = 1792
Therefore the value of 7x (3x+x) when x is 8 = 1792
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