sqrt-45 sqrt -70

 

no kind of mathematical sign between the 2 sqrts
in Pre-Algebra Answers by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

3 Answers

√-45 √-70

= √-1 √45 √-1 √70 {factored √-1 out of each one}

= i√45 i√70 {working with imaginary numbers, √-1 is i}

= i√9√5 i√70 {broke √45 into √9 and √5}

= i²(3)√350 {evaluated √9 to be 3, multiplied i by i and 5 by 70}

= (-1)(3)√25√14 {in imag. numbers, i² is -1, broke 350 into 25 and 14}

= -3(5)√14 {multiplied -1 by 3 and evaluated square root of 25 to be 5}

= -15√14 {multiplied -3 by 5}

www.algebrahouse.com

by Level 4 User (8.4k points)
6(5y + 5z) - 30z
by

16 ÷ 2 + 62 × 3 - 6

 

by

Related questions

1 answer
asked Aug 13, 2014 in Algebra 1 Answers by capoislamort Level 1 User (580 points) | 428 views
2 answers
1 answer
1 answer
1 answer
1 answer
5 answers
asked Sep 24, 2011 in Pre-Algebra Answers by anonymous | 1.5k views
1 answer
0 answers
1 answer
asked Oct 20, 2016 in Calculus Answers by marthnus | 366 views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!
87,184 questions
97,330 answers
2,380 comments
24,564 users