Question

x^4+15x^2+56 by splitting middle term

Answer 1

Answer:

X⁴ +15x² +56

x⁴ +7x² + 8x ² +56.

x²( x +7) + 8( x + 7)

(x + 7)( x² + 8)

(x+7) ( x+4)(x-4)

Step-by-step explanation:

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