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3 years ago

Does anyone know the answer to -4 (-5) (9)

Mathematics

1 answer:

Grace [21]3 years ago

3 0

Answer:180 I think

Step-by-step explanation:

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Does anyone know this answer??

Aleonysh [2.5K]

For this case we have the following equation:

$(2x + 3) ^ 2 + 8 (2x + 3) + 11 = 0$

Let $u = 2x + 3$

We have:

$u ^ 2 + 8u + 11 = 0$

By definition, given an equation of the form $ax ^ 2 + bx + c = 0$

The quadratic formula, to find the solution can be written as:

$x = \frac{-b+/-\sqrt{b ^ 2-4 (a) (c)} }{2(a)}$

In this case we have:

$a = 1\\b = 8\\c = 11$

Substituting in the quadratic formula we have:

See attached image

Answer:

Option B

8 0

3 years ago

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Factor the expression over the complex numbers. x2+50

Leto [7]

x² + 50

= x² - (-50)

= $\sqrt{x^{2} } +/- \sqrt{-50}$ Side note: $\sqrt{-50} = \sqrt{(-1) * 5 * 5} = 5i$

= (x + 5i)(x - 5i)

8 0

3 years ago

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Given a = 4, b = -2 and c = 8, evaluate ab - bc. -24 -4 8

Mrac [35]

(4*-2)-(-2*8)=
-8--16=8

8 0

3 years ago

Can someone simplify pls

algol [13]

we are given to simplify

$\\ \ (x^6y^5)(5xy^2)(-6x^4)\\ \\$

Open the bracket and write the like terms together

$\\ \ =x^6y^5*5xy^2*(-6)x^4\\ \\ \ =-30x^6*x*x^4*y^5*y^2\\ \\$

when the bases are same then the exponents gets added

$\\ \ =-30x^{6+1+4}y^{2+5}\\ \\ \ =-30x^{11}y^7$

8 0

3 years ago

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Which is the Recursive Function?

Tcecarenko [31]

Answer:

In programming, a recursive function is a function that calls itself. Recursion is used very commonly in programming, although many simple examples (including some shown in this section) are actually not very efficient and can be replaced by iterative methods (loops or vectorized code in MATLAB).

Step-by-step explanation:

4 0

2 years ago