Math and Arithmetic

# What does squared x equal 7?

119120121 ###### 2011-11-18 22:22:05

2.645 squared equals 7.

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If x=7, then x^2 (that is, "x squared") equals 49.

or

If x^2=7, then x equals the Square root of 7, or about 2.64575

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## Related Questions  2 x 2 x 2 x 7 x 7 is equal to 2 cubed times 7 squared. 2 cubed is equal to 8, and 7 squared is equal to 49. Therefore, 2 x 2 x 2 x 7 x 7 is equal to 8 x 49 = 392. This is called an inequality. If x squared is greater than or equal to 49, then x is plus or minus 7 or greater than plus 7 or less than - 7. They are equal. 7 squared is 7 x 7, which equals 49. 6 x 7 = 42, plus another 7 = 49. 49 = (&plusmn;7)2 x2&lt;=49 =&gt; -7 &lt;= x &lt;= 7  Without an equality sign the expression given can't be considered to be an equation and therefore has no solution. It does not equal anything.The inequality implies that x sqrt(7) where sqrt represents the principal square root. If x is equal to 5, then x squared plus 25 is equal to 50.   do you mean (x2)(x2)(x)(x) would equal x6  13 squared x 4 squared is equal to 2,704. 144 squared x 36 squared is equal to 26,873,856.  2 x cosine squared x -1 which also equals cos (2x)  It's equal to positive b squared, or (b x b) .  If x squared = 40 then x = square root of 40 = +/- 6.3255555 Yes because 7 squared is equal to 49 No, not strictly speaking. Length squared would have the same units as area but is not equal to it. Length x width is area. If I have a rectangle that is 4m wide x 7m in length then the area would be 7x4 = 28 m2. But length squared would be 7 x 7 = 49m2 which is incorrect. 8 squared x 2 is equal to 128. ###### Math and ArithmeticAlgebraTrigonometry Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.