Expand. 1.(a+4) square. 2.(m+7)square. 3.(x -9)square. 4.(2x-1)square. 5.(1-3x)square
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Answer:
1. a^2+8a+16
2. m^2+14m+49
3. x^2-18x+81
4. 4x^2-4x +1
5. 1-6x+9x^2
Step-by-step explanation:
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