Answer:
49
Step-by-step explanation:
Use PEMDAS:
P Parentheses first
E Exponents (ie Powers and Square Roots, etc.)
MD Multiplication and Division (left-to-right)
AS Addition and Subtraction (left-to-right)
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(-5)² - 2 × (-9) + 6 first Exponents
25 - 2 × (-9) + 6 next Multiplication
25 + 18 + 6 next Addition
43 + 6 = 49
