zackinator9226
10.09.2020 •
Mathematics
(2x+1)+(×-10)=90
how do i solve this
Solved
Show answers
More tips
- A Art and Culture How to Learn to Sing? A Complete Guide for Beginners...
- H Health and Medicine How to Get Rid of Dandruff?...
- S Sport How to Choose Tennis Rackets?...
- H Health and Medicine AKDS Vaccination: Ensure Your Child s Safety...
- H Health and Medicine Naskol ko Opasen Ukus Kleshcha i Kak Ego Raspoznat...
- C Computers and Internet How to Delete Your Account on Odnoklassniki...
- H Health and Medicine What to Do When Your Jaw Locks Up?...
- G Goods and services What Are the Most Popular Services?...
- P Philosophy How did the concept of module arise in computer science?...
Answers on questions: Mathematics
- M Mathematics Answer all and receive brainliest...
- M Mathematics Which fraction represents the solution to -6/5+ -3/25 in simplest form? A. -10 B. -18/125 C. 10 D. 18/125...
- M Mathematics Write the equation of the line that passes through (-4, 3) and is perpendicular to the line y = 7/5x-2/5...
- M Mathematics Find the volume of a pyramid with a square base, where the side length of the base is 4.8 cm 4.8 cm and the height of the pyramid is 4.6 cm 4.6 cm. Round your answer...
- M Mathematics A bag contains 10 marbles, of which 4 are orange. What is the probability that a randomly selected marble will be orange?...
- M Mathematics On number line below, length AB =? A16 B45...
- M Mathematics HELP PLEASE ILL MARK BRAINEST IF UR RIGHT. Gems math...
- M Mathematics The graph for the function f(x) is shown. Which of the following ordered pairs are a solution to the function? A) (-1,0) B) (0,-5) C) (-8,1) D) (5,0) E) (3,-8)...
- M Mathematics Select the figure that is not a net for a cube. Complete the explanation. When the figure is folded, _____ of the faces will overlap....
- M Mathematics Please help answer questions 1 and 2!...
Ответ:
So, x^2 + 14 x + 49 - 4 = 0;
Then, we use the formula ( a + b )^2 = a^2 + 2ab + b^2;
We have ( x + 7 )^2 - 2^2 = 0;
Then, ( x + 7 )^2 - 2^2 = 0;
We use the formula a^2 - b^2 = ( a - b)( a + b );
We obtain ( x + 5 )( x + 9) = 0;
Then, x + 5 = 0;
x = -5;
x + 9 = 0;
x = - 9;
-5 and - 9 are the zeros of the quadratic function.