All categories

3 years ago

Simplify:(4x2 - 2x) - (-5x2 - 8x)

Mathematics

2 answers:

Marysya12 [62]3 years ago

7 0

Answer:

4x2+5x2-2x+8x=9x2+6x

Step-by-step explanation:

trapecia [35]3 years ago

6 0

Answer:

24x

Step-by-step explanation:

Calculate the product

8 and 10

(8x-2x)-(-10x-8x)

Collect like terms

(6x)-(-18x)

Remove any unnecessary parentheses

6x-(-18x)

When there is a - in front of an expression in parentheses, change the sign of each term in the expression

6x+18x

Collect like terms

24x

Answer = 24x

You might be interested in

Which expression could represent the real-world situation below?

shtirl [24]

Answer:

Option A is your answer ☺️☺️

4 0

2 years ago

Frank runs 3 miles in 25 minutes. At the same rate, how many miles would he run in 20 minutes?

wariber [46]

2.4 miles

cross multiple 3/25 x x/20
25x=60
x = 60/25 simplified is 2 2/5 or 2.4 miles

6 0

3 years ago

Mike has 19 golf balls. Fred has 3 times as many. Rayhas half as many balls as Fred and mike combined.how many golf balls do the

ZanzabumX [31]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

What is the domain (in interval notation) of the following functions?

alexgriva [62]

$1.\\g(x)=\frac{3}{5x-4}\\\\D:5x-4\neq0\to5x\neq4\ \ \ /:5\to x\neq\frac{4}{5}\to x\in\mathbb{R}\ \backslash\ \{\frac{4}{5}\}\\\\2.\\h(x)=\frac{\sqrt{x}}{x-5}\\\\D:x\geq0\ \wedge\ x-5\neq0\to x\geq0\ \wedge\ x\neq5\to x\in\left$

$3.\\f(x)=\frac{\sqrt{x}}{x^2-5x}\\\\D:x\geq0\ \wedge\ x^2-5x\neq0\to x\geq0\ \wedge\ x(x-5)\neq0\\\\\to x\geq0\ \wedge\ x\neq0\ \wedge\ x\neq5\to x\in\mathbb{R^+}\ \backslash\ \{5\}\\\\4.\\g(x)=\frac{\sqrt{x}+5}{x^2-x-20}\\\\D:x\geq0\ \wedge\ x^2-x-20\neq0\to x\geq0\ \wedge\ (x+4)(x-5)\neq0\\\\\to x\geq0\ \wedge\ x\neq-4\ \wedge\ x\neq5\to x\in\left$

$5.\\h(x)=\frac{3}{x^2+1}\\\\D:x^2+1\neq0\to x^2\neq-1\to x\in\mathbb{R}\\\\6.\\f(x)=\frac{\sqrt{x-2}}{x+1}\\\\D:x-2\geq0\ \wedge\ x+1\neq0\to x\geq2\ \wedge\ x\neq-1\to x\in\left$

$7.\\g(x)=\frac{x^2}{3x^2-x-2}\\\\D:3x^2-x-2\neq0\to (3x+2)(x-1)\neq0\to x\neq-\frac{2}{3}\ \wedge\ x\neq1\\\\\to x\in\mathbb{R}\ \backslash\ \{-\frac{2}{3};\ 1\}\\\\8.\\h(x)=3(x-4)^2-7\\\\D:x\in\mathbb{R}$

4 0

2 years ago

Please help ill mark brilliant

Anastasy [175]

B is the answer to the question :)

8 0

3 years ago

Read 2 more answers