algebra

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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

  • algebra -

    10x^7 = 10x^4 * x^3
    50x^4 = 10x^4 * 5
    LCM = 10x^4 * 5x^3 = 50x^7

    x^2 - 36 = (x+6)(x-6)
    x^2 + 11x + 30 = (x+6)(x+5)
    LCM = (x+6)(x-6)(x+5)

    y^3 + 8y^2 + 16y = y(y+4)(y+4)
    y^2 - 8y = y(y-8)
    LCM = y(y+4)(y+4)(y-8)

    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)

  • algebra -

    Find each of the following for x^2+5x+6 and x^2+x-2.
    a) the LCM
    b) the GCF

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