Solve for x.

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

x=11 or x=-11

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

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

First:

Outer: 4x

Inner:  5x

Last:  5x4=20

Combine Like terms and write in standard form: +9x+20

Set up new equation:+9x+20=9x+141

Subtract 9x from both sides: +20=141

Subtact 20 from both sides: =121

Sqr root 121: =11

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

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5