High School

Consider the expression:

\[ 9 \times 3 \times x^2 - 1 \times x^4 \]

Show where to place grouping symbols so that the value of the expression is 45.

Also, demonstrate how the value of the expression changes to 45.

Answer :

Final answer:

To solve the expression 9*3^2*2-1*4 to equal 45, group the terms as 9*(3^2)*(2-1)*4 = 9*9*1*4 = 324.

Explanation:

To place grouping symbols in the expression 9*3^2*2-1*4 to get a value of 45, we need to group the terms as 9*(3^2)*(2-1)*4 = 9*9*1*4 = 324. The expression changes to 324 instead of 45.

Other Questions