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The value of b is 7, then what is the value of the expression -3b^2+25=

User Kamal Kant
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The answer is -122
Exponents first and if b is 7 it would be 7 X 7 which equals 49 and then you multiply 49 with -3 which would be -147. Then you add 25 to -147 which is -122
User Kamiesha
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