Question

(-25)×[ (-7+(-15)) ] = [( -25×(-7))] + [(-25)×(-15)]

Answer 1

Answer:

15pq + 15 + 9q + 25p = 15pq + 9q + 25p + 15 = 3 × 5 × p × q + 3 × 3 × q + 5 × 5 × p + 3 × 5 = 3q 5p + 3 + 5 5p + 3 = 5p + 3 3q + 5 ii z − 7 + 7xy − xyz = z − x × y × z − 7 + 7 × x × y = z 1 − xy − 7 1 − xy = 1 − xy z − 7

Step-by-step explanation:

Answer 2

Step-by-step explanation:

actually they both are same . it uses law of association of multiplication. plz mark me brainliest