YunoMatashi1029
YunoMatashi1029 YunoMatashi1029
  • 04-07-2019
  • Mathematics
contestada

The problem is in the pictures, please show step by step how to do it. Thanks! :)

The problem is in the pictures please show step by step how to do it Thanks class=

Respuesta :

sumjok
sumjok sumjok
  • 04-07-2019

Answer:

-4,-5/2

Step-by-step explanation:

2x^2+3x-20 =0

2x^2+8x-5x-20 =0

2x(x+4)-5(x+4) =0

(x+4)(2x-5) =0

Either,

x+4=0

x=-4

Or,

2x-5=0

2x=5

x=5/2

Answer Link
konrad509
konrad509 konrad509
  • 04-07-2019

[tex]2x^2+3x-20=0\\2x^2+8x-5x-20=0\\2x(x+4)-5(x+4)=0\\(2x-5)(x+4)=0\\x=\dfrac{5}{2} \vee x=-4[/tex]

Answer Link

Otras preguntas

CAN SOMEONE PLS HELP ME , ILL MARK BRAINLIEST
A monoprotic weak acid when dissolved in water is 0.66% dissociated and produces a solution with a pH of 3.04. Calculate the Ka of the acid. g
which expression shows 36 as a product of prime factors?
Can somebody proof read this, please? I will give brainliest 1. Date: November seventh, 1805 From the journal of Clark… I was a man that experienced childhood i
Can i please have help with these two questions,i am struggling
Someone please help me thank you
Find the measure of angle K K N M 17 27 63 36
ENGLISHPls paki answer po. Hindi ko po kc alam. I need it ASAP​
Please someone help me. Thank you.​
Explain the purpose of the Antarctic Treaty System