Help!
Factor the expressions.
x2 + 6x − 40 =

Your answer would be (x - 4)(x + 10)

Step-by-step explanation:

+ 6x - 40 =

So you first figure out what times what equals 1 (because there is a one in front of the ) That is just x.

(x ? ?)(x ? ?)

Next, you move onto the -40. Figure out what times what equals 40. These two numbers that you multiple then need to be added to make the middle number, which, in this case, is 6.

So 5 times -8 would be out of the picture because 8 - 5 is not 6.

-4 times 10 equals -40

So then you need to figure out WHERE you plug these in.

It would look like (x - 4)(x + 10)

It would NOT be (x - 10)(x + 4) because 4 plus -10 is -6, and we need a positive 6.

You can then check your answer by factoring, which would give you + 10x - 4x -40, simplify, and now you have + 6x - 40.

Sorry if that was wayyyy too confusing!!

3, 12, 48, 384, 1536, 6144, 24576, 98304

step-by-step explanation:

just keep timing it by 4.

in if you ask questions, the points are taken from your total and given to the one who answered it..

so if i have 30 points and i ask a question for 5 points, then when someone asks a question i will lose 5 points and the answerer earns 5

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