Question

Resole into factors
X4 +7x2y2 +16y4
the 4 and 2 are squares

Answer 1

Recall; 162=256

∴x4−162

x2(2)−162

Recall; x2−y2=(x+y)(x−y)→difference of two squares

x2(2)−162=(x2+16)(x2−16)

Factoring; x2−16=(x+4)(x−4)

Therefore;

x2+16(x+4)(x−4)

Answer 2

Step-by-step explanation:

see photo carefully...

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