Question

Evaluate each expression if a = -1 and b = 6: a + b ab​

Answer 1

$\huge \boxed{\mathfrak{Question} \downarrow}$

Evaluate each expression if a = -1 and b = 6:

• a + b
• ab

$\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}$

(1) a + b = ?

• Given, a = - 1 & b = 6.
• So, a + b = ?

$\sf \: a + b = ? \\ \\ \sf \: Substitute \: the \: values \: of \: a \: and \: b \\ \\ \sf a + b \\ \sf \dashrightarrow( - 1) + (6) \\ = \large \boxed{\mathfrak{ 5}}$

__________________

(2) ab = ?

• Given, a = - 1 & b = 6
• So, ab = ?

$\sf \: ab \: = ? \\ \\ \sf \: Substitute \: the \: values \: of \: a \: and \: b \\ \\ \sf \: ab \\ \dashrightarrow \sf( - 1)(6) \\ \dashrightarrow \sf- 1 \times 6 \\ = \boxed{\mathfrak{ \bold- 6}}$

Answer 2

Answer:

$a + b = - 1 + 6 = 5 \\ a \times b = 6 \times ( - 1) = - 6$