100z²+100z+25 factorise
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Answer:
25(4z^2+4z+1) is the correct answer
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Answered by
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Answer: 25(2z+1)²
Step-by-step explanation:
100z²+100z+25
= 25(4z² + 4z + 1)
= 25(4z² + 2z + 2z + 1)
= 25[2z(2z+1)+1(2z+1)]
= 25[(2z+1)(2z+1)]
= 25(2z+1)²
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