Simplify the expressionsand find the value if x = -4 "19-5/4x²-(-9+8/3x²)"
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Step-by-step explanation:
= 19-5/4×(4×4)-{+9-8/3(4×4)}
= 19-5/4×16-9-8/3×16
= -1-51.6
= -52.6
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