Q: What is the GCF of 13x2 and 39xy4?

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x3 + 13x2 + 42x = x(x + 6)(x + 7).

no. it can be simplified into 13x2. 13 and 2 are prime.

13x1=13 13x2=26...etc

x3 + 13x2 + 42x = x(x2 + 13x + 42) = x(x2 + 6x + 7x + 42) = x[x(x + 6) + 7(x + 6)] = x(x + 7)(x + 6)

5x2 + 3x + 8x2 = 13x2 + 3x = x(13x + 3)

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x3 + 13x2 + 42x = x(x + 6)(x + 7).

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no. it can be simplified into 13x2. 13 and 2 are prime.

13x2=26

13x1=13 13x2=26...etc

x3+13x2=-22xadd 22x to both sides:x3+13x2+22x=0now factor:x(x2+13x+22)=0x(x+11)(x+2)=0x=0x+11=0x+2=0Therefore the solution to this equation is x=0, x=-11, x=-2