THEMATICS 0. Using identities, evaluate.
( 71 71
(iv) 9982
(viii) 8.92
(i) 992
W 297 x 303
(in 1022
(vii) 78 X 82
tot
(ix) 1.05 x 9.5
7. Using a-b2= (a + b)(a - b), find
( 51- 403 Go X4.02)2 – (0.98) (ii) 1532 – 1472
(iv) 12.P - 7.92
8. Using (x + a) (x+b) = x2 + (a + b) x + ab, find
@ (1) 103 x 104
(ii) 5.1 x 5.2
(iv) 9.7 x 9.8
(iii) 103 x 98
WHAT HAVE WE DISCUSSED?
are formed from variables and constants.
ded to form expressions. Terms themselves are formed as product of factors.
( 71 71
(iv) 9982
(viii) 8.92
(i) 992
W 297 x 303
(in 1022
(vii) 78 X 82
tot
(ix) 1.05 x 9.5
7. Using a-b2= (a + b)(a - b), find
( 51- 403 Go X4.02)2 – (0.98) (ii) 1532 – 1472
(iv) 12.P - 7.92
8. Using (x + a) (x+b) = x2 + (a + b) x + ab, find
@ (1) 103 x 104
(ii) 5.1 x 5.2
(iv) 9.7 x 9.8
(iii) 103 x 98
WHAT HAVE WE DISCUSSED?
are formed from variables and constants.
ded to form expressions. Terms themselves are formed as product of factors.
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