Lutasin ang 7x^10+56x^7y^6

$$7 x ^ { 10 } + 56 x ^ { 7 } y ^ { 6 }$$

I-factor

$$7\left(x+2y^{2}\right)\left(x^{2}-2xy^{2}+4y^{4}\right)x^{7}$$

Mga Hakbang ng Solution

I-factor out ang 7.

$$7\left(x^{10}+8x^{7}y^{6}\right)$$

Isaalang-alang ang x^{10}+8x^{7}y^{6}. I-factor out ang x^{7}.

$$x^{7}\left(x^{3}+8y^{6}\right)$$

Isaalang-alang ang x^{3}+8y^{6}. I-rewrite ang x^{3}+8y^{6} bilang x^{3}+\left(2y^{2}\right)^{3}. Maaaring i-factor ang sum ng mga cube gamit ang panuntunang: a^{3}+b^{3}=\left(a+b\right)\left(a^{2}-ab+b^{2}\right).

$$\left(x+2y^{2}\right)\left(x^{2}-2xy^{2}+4y^{4}\right)$$

I-rewrite ang kumpletong naka-factor na expression.

$$7x^{7}\left(x+2y^{2}\right)\left(x^{2}-2xy^{2}+4y^{4}\right)$$

I-evaluate

$$7\left(x^{3}+8y^{6}\right)x^{7}$$