Prime factor both numbers or expressions and use the factors the number of times it was used the MOST in either number.
6y^3=2*3*y*y*y
18y^4=2*3*3*y*y*y*y
2*3*3*y*y*y*y=18y^4
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well, if 3x6 is in parentheses with the y4, then you multiply to get 18y4. After that, you go to the power of -1, which is basically dividing 1 by 18y4. The final answer would be a fraction with 1 on the top and 18y4 on the bottom.
6y3 + 8y2 - 15y - 20 is an expression, not an equation (or inequality). An expression cannot be solved.The expression factorises to (3y + 4)*(2y2 - 5)
The LCM is 392.
LCM of 15 and 2 is 30.
The LCM is: 270