1 year ago

What is the answer for this 3x+4x+5x+...+43x

1 answer:

7 0

Answer:

1032x

Step-by-step explanation:

$3x+4x+\cdots+43x=x(3+4+\cdots+45) \\ \\ =43x\left(\frac{45+3}{2} \right) \\ \\ =43(24x) \\ \\ =1032x$

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