The idea of grouping is to get the terms in groups that allow you to factor out from each group something that becomes a factor in itself, leaving two factors behind that are alike. Like this: rearrange those terms so they are in this order:
(-70y^2 - 63xy) + (90x^3 + 100yx^2). Now out of the first set we are going to factor out a -7y, and out of the second set we are going to factor out a 10x^2. When we do this, this is what we get: -7y(10y + 9x) + 10x^2(9x + 10y). As you can see, what's inside both sets of parenthesis is the same, just in a different order. We can factor that out now, leaving (9x + 10y)(10x^2 - 7y). And that is factored by grouping.
Answer:
7/12
Step-by-step explanation:
- when you divide 7/6 by 2, you have to make the 2 into a fraction; which would be 2/1.
- you would flip the 2/1 to 1/2, and make the divide sign into a multiplication sign.
- then just multiply! hope this helps! :)
Answer:
150 units squared
Step-by-step explanation:
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