Question

Solve for x. (x + 5)(x + 4) = 9x + 141

Answer 1

Answer:x=11 or x=-11

Step-by-step explanation:  First, Use the FOIL method.

(x+5)(x+4)=9x+141

First: $x^{2}$

Outer: 4x

Inner:  5x

Last:  5x4=20

Combine Like terms and write in standard form: $x^{2}$+9x+20

Set up new equation:$x^{2}$+9x+20=9x+141

Subtract 9x from both sides: $x^{2}$+20=141

Subtact 20 from both sides: $x^{2}$=121

Sqr root 121: $\sqrt{121}$ =11

Remeber a sqr root of a positive number can be positive and negative so x= 11 or -11

Answer 2

Answer: x=11 or x=-11

Step-by-step explanation: