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3 years ago

ASAP Simplify both expressions pls. 1. 3y^2+3(6y^2-9) 2. 0.5(x^4-3)+11

Mathematics

1 answer:

mezya [45]3 years ago

7 0

Answer:

$1.\ 21y^2-27$

$2.\ 0.5x^4+9.5$

Step-by-step explanation:

Solving (1)

$3y^2+3(6y^2-9)$

Open bracket

$3y^2+3*6y^2-3*9$

$3y^2+18y^2-27$

Simplify like terms

$21y^2-27$

Solving (2)

$0.5(x^4-3)+11$

Open bracket

$0.5*x^4-0.5*3+11$

$0.5x^4-1.5+11$

Simplify like terms

$0.5x^4+9.5$

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