Which equals the product of (x – 3)(2x + 1)

Mathematics

2 answers:

vodka [1.7K]3 years ago

7 0

Answer:

$2 {x}^{2} - 5x - 3$

Step-by-step explanation:

$( x - 3)(2x + 1) \\ = x(2x + 1) - 3(2x + 1) \\ = 2 {x}^{2} + x - 6x - 3 \\ = 2 {x}^{2} - 5x - 3$

alekssr [168]3 years ago

6 0

Answer:

Step-by-step explanation:

You might be interested in

PLEASE HELP IT"S DUE IN 20 MINS!!!

BlackZzzverrR [31]

Answer:

the available molding is not enough the molding is 1 inch shorter

Step-by-step explanation:

convert 13 feet into inches then add the 9 inches

7 0

3 years ago

What is value of x? Enter your answer in the box.

marin [14]

Answer:

$x \ = \ 10$

Step-by-step explanation:

Let point $D$ be the point where the straight line drawn from point $A$ meets the straight line $BC$ , it is evident that $\triangle ABD$ and $\triangle ACD$ is similar given that both triangles share the same angle, $\angle BAD \ = \ \angle DAC$ . Hence, the ratio of the sides of each triangle is the same. Specifically,

$\displaystyle{\frac{x+4}{8} \ = \ \frac{2x+1}{12}}$ .

Performing cross multiplication yields

$12\left(x+4\right) \ = \ 8\left(2x+1\right) \\ \\ \rule{0.15cm}{0cm}12x+48 \ = \ 16x+8 \\ \\ \rule{1.1cm}{0cm} 4x \ = \ 40 \\ \\ \rule{1.3cm}{0cm} x \ = \ 10$ .