Factorisation

Determine the area for the diagrams below using algebraic expressions

• 10x² - 11x - 6

• 7x² - 11x - 6

• 10x² - 19x - 6

• 10x² + 11x - 6

Expand (2x + 3)².

• 2x² +12x + 6

• 2x² +12x + 9

• 4x² +12x + 9

• 4x² +12x + 6

Factor
2x² - 13x - 70

• (2x-7)(x+10)
• (7x+5)(x+2)
• (2x+7)(x-10)
• 2(x+7)(x+10)

The factorization of (x³ - 25 x) is ______

• x (x - 5)²
• x (x + 5)²
• x (x + 5) (x - 5) 
• None of these

Choose the correct answer:
a² + bc + ab + ac = ______

• (a + b) (a + c)
• (a + b) (b + c)
• (a + c) (b + c)
• a (a + b + c)

Factor
3v² - 4v - 7

• (3v-7)(v+1)
• 3(v-7)(v-1)
• (3v+1)(v-9)
• (3v+1)(v-10)