amitc50
amitc50
16-11-2020
Mathematics
contestada
why is 4(x + 5) equivalent to 4x + 20
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jackscally79
jackscally79
16-11-2020
Start by multiplying everything INSIDE the brackets by everything OUTSIDE the brackets:
4(x + 5)
= 4 * x + 4 * 5
Use our rules of operations:
4 * x + 4 * 5
= 4x + 20
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