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Marta_Voda [28]
3 years ago
7

Evaluate the following expression using the values given:

Mathematics
1 answer:
algol [13]3 years ago
5 0
For the answer to the question above,
2r^2 + 3s^3 - r^2 + 4t^2 - r^2

r = -2 
s = -3
t = 5

First, we should substitute everything into the expression 

(2)((-2)^2) + (3)((-3)^3) - (-2^2) + (4)(5^2) - (-2^2)

Now we should simplify the exponents 

(2)(4) + (3)(-27) - (4) + (4)(25) - (4)

Now we simplify the brackets 

8 + (-81) - 4 + 100 - 4

so 8 minus 81 minus 4 plus 100 minus 4 is equal to +19
I hope this helps.
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