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Mathematics

2 answers:

Nataly [62]4 years ago

6 0

how did you gett such a hard question (yes im asking in an awnser box)

Anestetic [448]4 years ago

4 0

1) Given

2) m∠1 + m∠2 = 90°

3) BD bisects ∠ADC

4) definition of angle bisector

5) definition of congruency

6) m∠1 + m∠3 = 90°

7) ∠1 is complementary to ∠3 (7) definition of complementary

If there is a drop down box, and my answer is not an option, type in the options in the comment box and I will let you know which theorems (or definitions) are the same as my answer.

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Factor this trinomial completely.

WITCHER [35]

Answer:

Option C. (2x+3)(6x – 5) is the correct answer.

Step-by-step explanation:

Given polynomial(trinomial) is:

$12x^2 + 8x - 15$

The given trinomial is quadratic. Factorization will be as follows:

Multiplying the co-efficient of x^2 and the constant results in 180. We have to make factors of 180 in such a way that their sum of difference is equal to the co-efficient of x.

The required factors are 18 and 10

So,

$=12x^2+18x-10x-15\\=6x(2x+3)-5(2x+3)\\= (6x-5)(2x+3)$