Q58Multiple choice
Subtract
- (a)– 7p2qr from – 3p2qr.
- (b)–a2 – ab from b2 + ab.
- (c)–4x2y – y3 from x3 + 3xy2 – x2y.
- (d)x4 + 3x3y3 + 5y4 from 2x4 – x3y3 + 7y4. (e) ab – bc – ca from – ab + bc + ca. (f) –2a2 – 2b2 from – a2 – b2 + 2ab. (g) x3y2 + 3x2y2 – 7xy3 from x4 + y4 + 3x2y2 – xy3. (h) 2 (ab + bc + ca) from –ab – bc – ca. (i) 4.5x5 – 3.4x2 + 5.7 from 5x4 – 3.2x2 – 7.3x. (j) 11 – 15y2 from y3 – 15y2 – y – 11.
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(a) – 7p2qr from – 3p2qr.
(b) –a2 – ab from b2 + ab.
(c) –4x2y – y3 from x3 + 3xy2 – x2y.
(d) x4 + 3x3y3 + 5y4 from 2x4 – x3y3 + 7y4. (e) ab – bc – ca from – ab + bc + ca. (f) –2a2 – 2b2 from – a2 – b2 + 2ab. (g) x3y2 + 3x2y2 – 7xy3 from x4 + y4 + 3x2y2 – xy3. (h) 2 (ab + bc + ca) from –ab – bc – ca. (i) 4.5x5 – 3.4x2 + 5.7 from 5x4 – 3.2x2 – 7.3x. (j) 11 – 15y2 from y3 – 15y2 – y – 11.