115k views
5 votes
Hellppppp meeee pleaseeee

Hellppppp meeee pleaseeee-example-1

1 Answer

3 votes

Answer:

a) x+4

b) a = 1, b = 10

Explanation:

a) You can read the lenght of AB, which is 4 + x

b) The lenght of AD is 6+x

The area of the rectangle ABCD is lenght AB * lenght CD,

so (4+x)*(6+x) = 24 + 6x + 4x + x^2 = x^2 + 10x +24

Since this must equal 28, it follows that

x^2 + 10x + 24 = 28,

so 1*x^2 + 10x = 4

(note that 1*x^2 is just x^2)

so a = 1 and b = 10

User Abdul Qayyum
by
7.9k points

Related questions

asked Apr 16, 2018 129k views
Darren Reimer asked Apr 16, 2018
by Darren Reimer
7.9k points
1 answer
1 vote
129k views
asked Jan 19, 2024 226k views
Daniel Porteous asked Jan 19, 2024
by Daniel Porteous
8.6k points
2 answers
0 votes
226k views
asked Apr 7, 2019 189k views
Avikam asked Apr 7, 2019
by Avikam
7.1k points
1 answer
4 votes
189k views