Question

7. Given below are the algebraic expressions with their factors. How many of the
following will hold the equality true ?
1. a+ bc + ab + ac = (a + b)(a + c) 2. a² + bc - ab - ac = (a - b)(a -c)
3. a? - bc - ab-ac = (a - b)(a - c) 4. a? - bc + ab + ac = (a + b)(a -c)
(1) 4 (2) 3 (3) 2 (4) 1​

Answer 1

Answer:

1

Step-by-step explanation:

(a-b)(a-c)=

${a}^{2} + bc - ab - ac$