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svetlana [45]
2 years ago
9

12. Find mZADE. (4x + 15)° (13x + 7)

Mathematics
1 answer:
Andreyy892 years ago
6 0

Answer:

(22+17x)

Step-by-step explanation:

combine like terms

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Answer:

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Step-by-step explanation:

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2 years ago
Which are factors of x2 – 4x – 5?
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(x-5)(x+1)

Step-by-step explanation:

Since the highest power of x is 2, u can assume the equation to be (x +/- A) (x +/- B), whereby A and B are unknowns.

Since the coefficient of X^2 is 1, and the number in the equation is - 5, the only possible values for A and B to get - 5 is either - 5 and 1 or 1 and - 5.

Since coefficient of x is - 4 and number in equation is - 5, imagine inserting those numbers in the equation and cross multiplying back. You would realise that the answer should be as listed above.

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3 years ago
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Answer:

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Step-by-step explanation:

Quadratic Equation: ax^2+bx+c=0

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Step-by-step explanation:

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