m4yrajentr7yuale m4yrajentr7yuale

23-05-2016
Mathematics

Answered

What are the solution(s) to the quadratic equation x2 – 25 = 0?

A.x = 5 and x = –5

B.x = 25 and x = –25

C.x = 125 and x = –125

D.no real solution

Verified Answer :

apologiabiology apologiabiology

23-05-2016

difference of 2 perfect squares
a^2-b^2=(a-b)(a+b)
25=5^2
x^2-5^2=(x-5)(x+5)=0
set to zero
x-5=0
x=5
x+5=0
x=-5

x=5 or -5

A

Answer Link

Related Questions

The safest and most natural way to deliver a baby is vaginally

Four loads of stone weigh 23 ton find the weight of 1 load of stone

You buy a 11000 scale model of the Statue of Liberty during a trip to New York City The height of the model is 93 centimeters Find the actual height x in meters

If each fission reaction in a nuclear reactor emits three neutrons how many neutrons are produced from three fission reactions one three six nine

What is the volume of a cone that has a height of 7 mm and a radius of 3 mm Use 314 to approximate pi and express your answer in hundredths

Ive looked over this story so many times and I cannot find the answer Remember the story Asoka Follows the Buddha to answer this question 1 What does this story

divide 3x32x2x2 by x2

16 If you were a specialist working for the National Security Agency your main job would likely be A creating coded messages B fixing spy satellites C working i

what value of x will make this proportion true 329 116

Each trait of a plant is determined by