x² + xz + 4x + 4z factorise
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Answer:
Step-by-step explanation:
Given that,
x² + xz + 4x + 4z
= x² + 4x + xz + 4z
= x ( x + 4 ) + z ( x + 4 )
= ( x + z ) ( x + 4 ) is the answer.
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