Factorise 25 metre square + 30m +9
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3
Answer:
Step-by-step explanation:
25m^2 + 30m + 9 = (5m + 3)^2
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4
25m^2+30m+9
(5m)^2+ 2×5m×3+(3)^2
(a+b)^2=a^2+2ab+b^2
(5m+3)^2
(5m)^2+ 2×5m×3+(3)^2
(a+b)^2=a^2+2ab+b^2
(5m+3)^2
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