I don’t think you can take down a question on Brainily but thanks for the 5 points
have a wonderful day!!!!!
Answer:
Step-by-step explanation:
The answer is x=-4 the work is shown on the pic
Add 5 to both sides to get x alone and you will have your answer which is x= -3
Answer:
x = -7 and x = 3
Step-by-step explanation:
x² + 4x - 21 = 0 factors as follows: (x + 7)(x - 3) = 0.
Then x = -7 and x = 3.