Factorise the followingx^2+2x-8

Mathematics

1 answer:

ioda3 years ago

7 0

Answer:

${x}^{2} + 2x - 8 \\ {x}^{2} + 4x - 2x - 8 \\ x(x + 4) - 2(x + 4) \\ = (x + 4)(x - 2)$

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Read 2 more answers

Expand and simplify 2(a + 3) + 3(2a - 1)

Svetlanka [38]

2(a+3) + 3(2a-1)
First, let's use the distributive property to expand 2(a+3):
2(a+3) = 2*a + 2*3 = 2a + 6
Let's use the distributive property now to expand 3(2a-1):
3(2a - 1) = 3*2a - 3*1 = 6a - 3

So 2(a+3) + 3(2a-1) = 2a + 6 + 6a - 3
Now you calculate variables between each others, and numbers between each others:
2a + 6 + 6a - 3 = 2a + 6a + 6 - 3 = 8a + 3

So the simplified form of 2(a+3) + 3(2a-1) is 8a + 3.

Hope this Helps! :)

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Factorise the followingx^2+2x-8​

Factorise the followingx^2+2x-8