Question

H(x) = x^2 - 5x +7 Find h(-5)

Answer 1

Answer:

$\bold{h(-5)=57}$

Step-by-step explanation:

Substitute $-5$ for everywhere there is $x$

$h(x) = x^2 - 5x +7\\=-5^2 - 5(-5) +7$

$-5^2 - 5(-5) +7$

PEMDAS order of operations

Parenthesis

$\bold{-5\times(-5)}\\=25$

$-5^2+25 +7$

Exponents

$\bold{-5^2}\\=-5\times-5\\=25$

$25+25 +7$

Addition

$25+25+7\\=50+7\\=57$

Therefore, $\bold{h(-5)=57}$.

Answer 2

Answer:

57

Step-by-step explanation:

h(-5) = (-5)^2 - 5(-5) + 7

h(-5) = 25 + 25 +7

h(-5) = 57