*(8t^2-10t+2)+ (8t+13)
= 8t^2-2t+15
*(x^2+5x-1)-(7x^2+2)
=-6x^2+5x+1
first one is correct
in the second, the constant at the end would be -3
btw, what is the meaning of * at the start of your expression?
* is used to show multiplication.
oh no it meant it was a question that's why there is two. it wasn't in the equation so for the second question it is
=-6x^2+5x-3
To simplify the given expressions, we can combine like terms and perform any necessary operations.
For the first expression: *(8t^2-10t+2)+ (8t+13)
Step 1: Distribute the addition to both terms inside the parentheses:
= 8t^2 - 10t + 2 + 8t + 13
Step 2: Combine like terms:
-10t and +8t can be combined to give -2t.
2 and 13 can be combined to give 15.
= 8t^2 - 2t + 15
Therefore, the simplified expression is 8t^2 - 2t + 15.
For the second expression: *(x^2+5x-1)-(7x^2+2)
Step 1: Distribute the subtraction to both terms inside the parentheses:
= x^2 + 5x - 1 - 7x^2 - 2
Step 2: Combine like terms:
x^2 and -7x^2 can be combined to give -6x^2.
5x and -2x can be combined to give 5x.
-1 and -2 can be combined to give 1.
= -6x^2 + 5x + 1
Therefore, the simplified expression is -6x^2 + 5x + 1.