78x5 = multiply the ten by 5
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Answer:
Step-by-step explanation:
Start by factoring out a 5:
We need to find two integers that have a product of 12, and a sum of -7:
(-3)(-4)=12
-3-4=-7
We can split -7x into -3x and -4x
Factor each half separately:
Since x and -4 are both being multiplied by x-3, we can combine them: