Dinazhae Dinazhae

24-03-2021
Mathematics

contestada

What are the solutions of the quadratic equation ? x ^ 2 + 10x = - 21

Respuesta :

voituredecourse voituredecourse

24-03-2021

Answer:

-3 and -7

Step-by-step explanation:

x^2+10x+21=0

(x+3)(x+7)=0

x=-3

x= -7

Answer Link

Otras preguntas

Correct answers only please! Mark has the following averages in his AMDM math class: Homework: 95 Quiz average: 80 Test average: 67 Final Exam: 60 If the teache

Pls help! I’m not very smart so please explain it to me!

What is the correct form of the verb “empezar” in the following sentence? Ella _______ el examen pronto.

Which expression simplifies to 67? (5÷5+6)⋅2+95÷5+(6⋅2)+95÷5+6⋅(2+9)5÷5+6⋅2+9

22 Your answer is INCORRECT In triangle ABC, an exterior ange at C measures 120 and mLA = 70. which is the shortest side or the triangle? a) BC b) AC

State whether the light from an object moving towards us will be red shifted or blue shifted and explain why.

Please help me I don’t understand thisss

The issue of truth is not dealt with in the study of philosophy, since truth is a subjective reality. T/F

An electrochemical cell at 25°C is composed of pure copper and pure lead solutions immersed in their respective ionis. For a 0.6 M concentration of Cu2+, the le

Someone plz help on # 15 (idk what to do) :/