subject
Mathematics, 09.12.2020 16:30 Franciscoramosxt

Error Analysis: State which step the error was made and explain what they should have done. Step 1:x2+12x−20=0
Step 2:(x2+12x+_ )=20
Step 3:x2+12x+36=20
Step 4:(x+6)2=20
Step 5:x+6=±2√5
Step 6:x=−6±2√5

ansver
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 13:30, hellicuh
Linet passes through (4.5) and is perpendicular to the line shown on the condirate grid. what is the equation of line t in standard form?
Answers: 1
image
Mathematics, 21.06.2019 19:30, gonzalesalexiaouv1bg
The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions
Answers: 2
image
Mathematics, 22.06.2019 01:00, ceburns23
Hich polynomial correctly combines the like terms and expresses the given polynomial in standard form? 8mn5 – 2m6 + 5m2n4 – m3n3 + n6 – 4m6 + 9m2n4 – mn5 – 4m3n3
Answers: 3
image
Mathematics, 22.06.2019 02:30, aeress
Right ∆abc has coordinates a(-7, 3), b( -7, 10), and c(-1, 3). the triangle is reflected over the x - axis and then reflected again over the y - axis to create ∆a'b'c'. which are the coordinates of vertex a'?
Answers: 1
You know the right answer?
Error Analysis: State which step the error was made and explain what they should have done. Step 1:...

Questions in other subjects:

Konu
Chemistry, 19.05.2021 14:00
Konu
Physics, 19.05.2021 14:00
Konu
Mathematics, 19.05.2021 14:00