2005年9月11日 · 分解因式：X的三次方-19X-30令f(x)=x^3-19x-30则若f(x)有因式(x-a)，则f(a)=0（因式定理）猜想f(x)有因式(x-a)，其中a为整数则a^3-19a-30=0要求a为5的倍数显然a=5时a^3-19a-30=0所以原式有因式x-5分解为(x-5)(x^2+5x

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What is the answer to 19-x=30 ? The answer to 19-x=30 is x=-11; Solve for x: 19-x=30; The solution is x=-11

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19 x 30 inches equals 48.26 x 76.2 cm. How big is 19in x 30in in cm? 19in x 30in is equal to 48.26cm x 76.2cm. To calculate an inch value to the corresponding value in centimeters, just multiply the quantity in inches by 2.54 (the conversion factor). centimeters = inches * 2.54.

Here we will show you how to solve 19x = 30. In other words, we will solve for x in order to find the value of x in this equation: The goal is to get x by itself on the left side. First, we divide both sides by 19 like this: Finally, 30 over 19 is the same as 30 divided by 19. So, we enter that into our calculator to get the final answer: