Math Problem Statement
Si a-b = 7 y a al cuadrado + b al cuadrado= 115 , calcule M = a+ b
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Equations with Two Variables
Sum and Difference of Squares
Formulas
(a + b)^2 = a^2 + b^2 + 2ab
(a - b)^2 = a^2 + b^2 - 2ab
ab = (a^2 + b^2 - (a - b)^2) / 2
Theorems
Pythagoras' Theorem (applied to algebraic identities)
Suitable Grade Level
Grades 9-11