Find each of the following products:
(i) 3 ☓ (−8) ☓ 5
(ii) 9 ☓ (−3) ☓ (−6)
(iii) (−2) ☓ 36 ☓ (−5)
(iv) (−2) ☓ (−4) ☓ (−6) ☓ (−8)

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Solution

(i) 3 × (−8) × 5 = $- 3 \times (8 \times 5)$ = $-$ 120

(ii) 9 × (−3) × (−6) = $9 \times (3 \times 6)$ = 162

(iii) (−2) × 36 × (−5) = $36 \times (2 \times 5)$ = 360

(iv) (−2) × (−4) × (−6) × (−8) = $(2 \times 4 \times 6 \times 8)$ = 384

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Similar questions

Q. Find each of the following products:

(i) 3 × 4 × (−5)
(ii) 2 × (−5) × (−6)
(iii) (−5) × (−8) × (−3)
(iv) (−6) × 6 × (−10)
(v) 7 × (−8) × 3
(vi) (−7) × (−3) × 4

Q. Find the products:
(i) (−2) × 3 × (−4)
(ii) 2 × (−5) × (−6)
(iii) (−8) × 3 × 5
(iv) 8 × 7 × (−10)
(v) (−3) × (−7) × (−6)
(vi) (−8) × (−3) × (−9)

Verify each of the following :

(i) $\frac{3}{7} \times \frac{- 5}{9} = \frac{- 5}{9} \times \frac{3}{7}$

(ii) $\frac{- 8}{7} \times \frac{13}{9} = \frac{13}{9} \times \frac{- 8}{7}$

(iii) $\frac{- 12}{5} \times \frac{7}{- 36} = \frac{7}{- 36} \times \frac{- 12}{5}$

(iv) $- 8 \times \frac{- 13}{12} = \frac{- 13}{12} \times (- 8)$

Question 1
Use suitable identities to find the following products:
(i) (x + 4) (x + 10)
(ii) (x+8) (x-10)
(iii) (3x + 4) (3x-5)
(iv) $(y^{2} + \frac{3}{2}) (y^{2} - \frac{3}{2})$
(c) (3-2x) (3+2x)

Find each of the following products:
$(i) (- 4) \times (- 5) \times (- 8) \times (- 10)$
$(i i) (- 6) \times (- 5) \times (- 7) \times (- 2) \times (- 3)$
$(i i i) (- 60) \times (- 10) \times (- 5) \times (- 1)$
$(i v) (- 30) \times (- 20) \times (- 5)$
$(v) (- 3) \times (- 3) \times (- 3) \times . .6$ times
$(v i) (- 5) \times (- 5) \times (- 5) \times . . .5$ times
$(v i i) (- 1) \times (- 1) \times (- 1) \times . . .200$ times
$(v i i i) (- 1) \times (- 1) \times (- 1) \times . . .171$ times

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Find each of the following products: (i) 3 ☓ (−8) ☓ 5 (ii) 9 ☓ (−3) ☓ (−6) (iii) (−2) ☓ 36 ☓ (−5) (iv) (−2) ☓ (−4) ☓ (−6) ☓ (−8)

(i) 3 × (−8) × 5 = -3×(8×5) = -120 (ii) 9 × (−3) × (−6) = 9× (3×6) = 162 (iii) (−2) × 36 × (−5) = 36 × (2×5) = 360 (iv) (−2) × (−4) × (−6) × (−8) = (2×4×6×8) = 384

Find each of the following products:
(i) 3 ☓ (−8) ☓ 5
(ii) 9 ☓ (−3) ☓ (−6)
(iii) (−2) ☓ 36 ☓ (−5)
(iv) (−2) ☓ (−4) ☓ (−6) ☓ (−8)

(i) 3 × (−8) × 5 = $- 3 \times (8 \times 5)$ = $-$ 120

(ii) 9 × (−3) × (−6) = $9 \times (3 \times 6)$ = 162

(iii) (−2) × 36 × (−5) = $36 \times (2 \times 5)$ = 360

(iv) (−2) × (−4) × (−6) × (−8) = $(2 \times 4 \times 6 \times 8)$ = 384