algebra
posted by lisa on .
1.FIND THE LCM OF
10X^7 AND 50X^4
2.FIND THE LCM OF
x^2 36 AND x^2 + 11x +30
3.FIND THE LCM
y^3+8y^2+16y, y^2 8y
4.FIND The LCM Of
15z^2 +60z and 3z^2 + 15z +12

10x^7 = 10x^4 * x^3
50x^4 = 10x^4 * 5
LCM = 10x^4 * 5x^3 = 50x^7
x^2  36 = (x+6)(x6)
x^2 + 11x + 30 = (x+6)(x+5)
LCM = (x+6)(x6)(x+5)
y^3 + 8y^2 + 16y = y(y+4)(y+4)
y^2  8y = y(y8)
LCM = y(y+4)(y+4)(y8)
15z^2 + 60z = 15z(z+4) = 3(z+4)*5z
3z^2 + 15z + 12 = 3(z+4)(z+1)
LCM = 15z(z+4)(z+1) 
Find each of the following for x^2+5x+6 and x^2+x2.
a) the LCM
b) the GCF