Multiply: (2x + 5) and (3x – 7)

1.	Multiply: (2x + 5) and (3x – 7)
Answer» (2x + 5) and (3x – 7) = 2x(3x – 7) + 5(3x – 7) = 2x × 3x – 2x × 7 + 5 × 3x – 5 × 7 = 2 × x × 3 × x – 2 × x × 7 + 5 × 3 × x – 35 = 2 × 3 × x × x – 2 × 7 × x + 15 × x – 35 = 6 × x² – 14 × x + 15x – 35 = 6x² – 14x + 15x – 35 = 6x² + x – 35

Answer»

(2x + 5) and (3x – 7)

= 2x(3x – 7) + 5(3x – 7)
= 2x × 3x – 2x × 7 + 5 × 3x – 5 × 7
= 2 × x × 3 × x – 2 × x × 7 + 5 × 3 × x – 35
= 2 × 3 × x × x – 2 × 7 × x + 15 × x – 35
= 6 × x² – 14 × x + 15x – 35
= 6x² – 14x + 15x – 35
= 6x² + x – 35

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Multiply: (2x + 5) and (3x – 7)

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