2 years ago

A system of equations is shown below.

Mathematics

1 answer:

Mazyrski [523]2 years ago

6 0

Answer:

Step-by-step explanation:

x² + 6x - 8 = 4x + 7

x² + 2x - 15 = 0

(x+5)(x-3) = 0

x = -5, 3

y = 4x + 7 = -13, 19

-13 + 19 = 6

You might be interested in

Solve for x 3x-1=9x+2

ANEK [815]

3x - 1 = 9x + 2

3x (-3x) - 1 (-2) = 9x (-3x) + 2 (-2)

-3 = 6x

-3/6 = 6x/6

-1/2 = x

hope thsi helps

4 0

3 years ago

Read 2 more answers

How can we factorise the expression: 2x^6+17x^3+8?

LekaFEV [45]

Answer:

$(a + 2)( {a}^{2} - 2a + 4 )(2 {x}^{ 3} + 1)$

Step-by-step explanation:

$2x^6+17x^3+8 \\ = 2x^6+16x^3 + {x}^{3} +8 \\ = 2{x}^{3} ( {x}^{3} + 8) + 1( {x}^{3} + 8) \\ = ( {x}^{3} + 8)(2 {x}^{ 3} + 1) \\ = ( {x}^{3} + {2}^{3} )(2 {x}^{ 3} + 1) \\ = (a + 2)( {a}^{2} - 2a + {2}^{2} )(2 {x}^{ 3} + 1) \\ = (a + 2)( {a}^{2} - 2a + 4 )(2 {x}^{ 3} + 1) \\$

7 0

3 years ago

What does it mean for a differential equation to be autonomous?

andrew11 [14]

The term "autonomous" refers to an ordinary differential equation that relates the derivatives of the dependent variable as a function *only* of the dependent variable. In other words, the ODE doesn't explicitly depend on the independent variable.

Examples:

$y'=y^2-1$ is autonomous

$y'=y^2-1+x$ is *not* autonomous

7 0

2 years ago

Which of the following show an element of the sample space for first rolling a die and then tossing a coin?

Sphinxa [80]

A because if you use T3 it wouldn’t have make sense so only reasonable and solution that works is A

5 0

2 years ago

01010101010101010100101010100100101010101010010101101001010101101001010100101010101010100000000010101010101010010101010101010101

Xelga [282]

Answer:

1. first one

2. there are no solutions that i see

Step-by-step explanation:

5 0

2 years ago