jshdsajfhkfhdk jshdsajfhkfhdk
  • 01-04-2021
  • Mathematics
contestada

calculate
4x^2+6x-9 if x=3
3y+7(2y-5) if y=4

Respuesta :

mlkcloud
mlkcloud mlkcloud
  • 01-04-2021

Answer:

1. 45

2. 33

Explanation:

1. 4x² + 6x - 9

= 4(9) + 18 - 9

= 36 + 18 - 9

= 45

2. 3y + 7(2y - 5)

= 12 + 7(8 - 5)

= 12 + 56 - 35

= 33

i hope this helps! :D

Answer Link
25leeelisa
25leeelisa 25leeelisa
  • 01-04-2021

Answer:

45

33

Step-by-step explanation:

4(3)^2+6(3)-9= 36+18-9= 45

3(4)+7(2*4-5)= 12+7(8-5)= 12+7(3)= 33

Answer Link

Otras preguntas

what forces led Americans to declare war on Britain in 1812?
A cable is lifting a construction worker and a crate. The weights of the worker and crate are 965 N and 1510 N, respectively. The acceleration of the cable is
what is the balanced chemical equation for caffeine?
Which words in the sentence are the appositive? Which words does the appositive rename? The author Charles Dickens wrote some of the best-loved novels of all
Simplify (7-8i)+(-12-4i)
what is the theory that tax cuts can raise supply called
Signs of Roman decline were manifested by agricultural and economic prosperity which undermined the values of Rome. the weakening of Rome's army which was force
the ratio of boys to girls at the movie is 4:7. If there are 21 girls, how many boys are at the movie?
What unions were open to African Americans in the 1920s?
Create the shortest poem ever in world history. This you do, your name could be on the Guiness World Records!