Substitution means putting numbers in place of letters to calculate the value of an expression. The bracket has been worked out first. \(2 + (-8)^2 = 2 + 64\). \(-8^2\) means \(-8 \times -8\), which ...
For example, in the expression \(2b^2c\), where \(b = 4\) and \(c = 3\), use the values of \(b\) and \(c\) to calculate the numerical value of the expression: The ...
CBSE Class 10 Mathematics Complete Revision Notes: Central Board of Secondary Education (CBSE) will soon conduct the CBSE Board Exam for students of Classes 10 and 12 in the early months of 2024.