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Ratling [72]
4 years ago
9

How do I solve this? (4x + 3) (10x - 7)

Mathematics
2 answers:
Katen [24]4 years ago
6 0

Answer:

40x²+2x-21

Step-by-step explanation:

4x × 10x - 4x × 7 + 3×10x - 3 × 7

40x² - 28x + 30x - 21

40x²+2x-21

Drupady [299]4 years ago
5 0

Answer:

40x^2+2x-21

Step-by-step explanation:

(4x + 3) (10x - 7)

Foil

first 4x*10x = 40x^2

outer  4x*-7 = -28x

inner 3*10x = 30x

last 3 *-7 = -21

Add them together

40x^2 -28x+30x-21

Combine like terms

40x^2+2x-21

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