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Paul [167]
3 years ago
12

Can someone please help me with this expanding brackets problem ? Quick ! I will give 20 points :)

Mathematics
1 answer:
eimsori [14]3 years ago
7 0

Step-by-step explanation:

(x + 1)(x - 6)(x + 7)

{x}^{2}  - 6x + x - 6(x + 7)

{x}^{3}  + 7x - 6 {x}^{2}  - 42x +  {x}^{2}  + 7x  - 42

{x}^{3}  - 5x {}^{2}  - 35x - 42

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The area, A, of a triangle is one-half the product of the triangle's base and height. A = A = (12)(5) A = ( b+ h) A = A = (b·h)
polet [3.4K]

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A triangle is a polygon with three sides and three angles. There are different types of triangles such as obtuse, scalene, right angle, equilateral and isosceles triangle.

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8 0
2 years ago
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